All Topics  
Japanese castle

 
Japanese Castle

   Email Print
   Bookmark   Link






 

Japanese castle



 
 
were fortresses composed primarily of wood and stone. They evolved from the wooden stockades of earlier centuries, and came into their most well-known form in the 16th century. Like European castles
Castle

A castle is a defensive structure seen as one of the main symbols of the Middle Ages. The term has a history of scholarly debate surrounding its exact meaning, but it is usually regarded as being distinct from the general terms fort or fortress in that it describes a residence of a monarch or noble and commands a specific defensive territor...
, the castles of Japan were built to guard important or strategic sites, such as ports, river crossings, or crossroads, and almost always incorporated the landscape into their defense.

Though they were built to last, and used more stone in their construction than most Japanese buildings, castles were still constructed primarily of wood
Wood

Wood is an organic material; in the strict sense wood is produced as secondary xylem in the stems of woody plants, notably trees but also shrubs, etc....
, and many were destroyed over the years.






Discussion
Ask a question about 'Japanese castle'
Start a new discussion about 'Japanese castle'
Answer questions from other users
Full Discussion Forum



Encyclopedia


were fortresses composed primarily of wood and stone. They evolved from the wooden stockades of earlier centuries, and came into their most well-known form in the 16th century. Like European castles
Castle

A castle is a defensive structure seen as one of the main symbols of the Middle Ages. The term has a history of scholarly debate surrounding its exact meaning, but it is usually regarded as being distinct from the general terms fort or fortress in that it describes a residence of a monarch or noble and commands a specific defensive territor...
, the castles of Japan were built to guard important or strategic sites, such as ports, river crossings, or crossroads, and almost always incorporated the landscape into their defense.

Though they were built to last, and used more stone in their construction than most Japanese buildings, castles were still constructed primarily of wood
Wood

Wood is an organic material; in the strict sense wood is produced as secondary xylem in the stems of woody plants, notably trees but also shrubs, etc....
, and many were destroyed over the years. This was especially true during the Sengoku
Sengoku period

The was a time of social upheaval, political intrigue, and nearly constant military conflict in Japan that lasted roughly from the middle of the 15th century to the beginning of the 17th century....
 ('Warring States') period (1467-1603), when many of these castles were first built. However, many were rebuilt, either later in the Sengoku period, in the Edo period (1603-1867) which followed, or more recently, as national heritage sites or museums. Today, there are around fifty castles extant, or partially extant, in Japan; it is estimated that once there were five thousand. Some castles, such as the ones at Matsue
Matsue Castle

is a feudal castle in Matsue, Shimane in Shimane prefecture, Japan. Nicknamed the "black castle" or "plover castle", it is one of the few remaining medieval castles in Japan – at least of the few remaining in their original wooden form, and not a modern reconstruction in concrete....
 and Kochi
Kochi Castle

is a Japanese castle located in Kochi, Kochi, Kochi Prefecture, Japan....
, both built in 1611, remain extant in their original forms, not having suffered any damage from siege or other threats. Hiroshima Castle
Hiroshima Castle

', sometimes called ' is a Japanese castle in Hiroshima, Hiroshima, Japan which was the home of the daimyo of the Hiroshima han . Originally constructed in the 1590s, the castle was destroyed in the atomic bombing of Hiroshima and Nagasaki in 1945....
, on the opposite end of the spectrum, was destroyed in the atomic bombing, and was rebuilt in 1958 as a museum.

The character '?', normally read as shiro, is read as jo when it is attached to a word, such as in the name of a particular castle. Thus, for example, Osaka Castle
Osaka Castle

is a Japanese castle in Chuo-ku, Osaka, Osaka, Osaka Prefecture, Japan.Originally called Ozakajo, it is one of Japan's most famous castles, and played a major role in the unification of Japan during the sixteenth century of the Azuchi-Momoyama period....
 is called Osaka-jo in Japanese
Japanese language

IPA: [n?iho?go] is a language spoken by over 130 million people in Japan and in Japanese emigrant communities. It is related to the Ryukyuan languages....
.

History

Originally conceived of purely as fortresses, their primary purpose being military defense, Japanese castles were originally placed in strategic locations, along trade routes, roads and rivers. Though castles continued to be built with these considerations in mind, for centuries fortresses were also built to serve as centers of governance. By the Sengoku period, they had come to serve as the homes of daimyo
Daimyo

The were powerful territorial lords who ruled most of Japan from their vast, hereditary land holdings. The term derives from a shortening of the title , which literally means "great named land" and originally simply referred to the owner of a large estate....
 (feudal lords), and served to impress and intimidate rivals not only with their defenses, but with their size and elegant interiors, architecture and decorations. Oda Nobunaga
Oda Nobunaga

was a major daimyo during the Sengoku period of History of Japan. He was the second son of Oda Nobuhide, a deputy shugo with land holdings in Owari province....
 was one of the first to build one of these palace-like castles, at Azuchi Castle
Azuchi Castle

was one of the primary castles of Oda Nobunaga. It was built from 1576 to 1579, on the shores of Lake Biwa, in Omi Province. Nobunaga intentionally built it close enough to Kyoto that he could watch over and guard the approaches to the capital, but, being outside the city, his fortress would be immune to the fires and conflicts that occas...
 in 1576; this was Japan's first castle to have a tower keep (???, tenshukaku), and it inspired both Toyotomi Hideyoshi
Toyotomi Hideyoshi

was a Sengoku period daimyo who unified Japan. He succeeded his former liege lord, Oda Nobunaga, and brought an end to the Sengoku period. The period of his rule is often called the Momoyama period, after Hideyoshi's castle....
's Osaka Castle
Osaka Castle

is a Japanese castle in Chuo-ku, Osaka, Osaka, Osaka Prefecture, Japan.Originally called Ozakajo, it is one of Japan's most famous castles, and played a major role in the unification of Japan during the sixteenth century of the Azuchi-Momoyama period....
 and Tokugawa Ieyasu
Tokugawa Ieyasu

Japanese name|Tokugawa}} was the founder and first shogun of the Tokugawa shogunate of Japan which ruled from the Battle of Sekigahara  in 1600 until the Meiji Restoration in 1868....
's Edo Castle
Edo Castle

, also known as , is a flatland castle that was built in 1457 by Ota Dokan. It is located in Chiyoda, Tokyo in Tokyo, then known as Edo, Toshima District, Musashi Province....
. Azuchi served as the governing center of Oda's territories, and as his lavish home, but it was also very keenly and strategically placed. A short distance away from the capital of Kyoto, which had long been a target of violence, Azuchi's carefully chosen location allowed it a great degree of control over the transportation and communication routes of Oda's enemies.

Prior to the Sengoku period
Sengoku period

The was a time of social upheaval, political intrigue, and nearly constant military conflict in Japan that lasted roughly from the middle of the 15th century to the beginning of the 17th century....
 (roughly, the 16th century), most castles were called yamashiro, or 'mountain castles'. Though most later castles were built atop mountains or hills, these were built from the mountains. Trees and other foliage were cleared, and the stone and dirt of the mountain itself was carved into rough fortifications. Ditches were dug, to present obstacles to attackers, as well as to allow boulders to be rolled down at attackers. Moats were created by diverting mountain streams. Buildings were made primarily of wattle and daub
Wattle and daub

Wattle and daub is a building material used for making walls, in which a woven lattice of wooden strips called wattle is daubed with a sticky material usually made of some combination of wet soil, clay, sand, animal dung and straw....
, using thatched roofs, or, occasionally, wooden shingles. Small ports in the walls or planks could be used to deploy bows or fire guns from. The main weakness of this style was its general instability. Thatch caught fire even more easily than wood, and weather and soil erosion prevented structures from being particularly large or heavy. Eventually, stone bases began to be used, encasing the hilltop in a layer of fine pebbles, and then a layer of larger rocks over that, with no mortar. This support allowed larger, heavier, and more permanent buildings.

Early fortifications

The first fortifications in Japan were hardly what one generally associates with the term "castles." Made primarily of earthworks and wood, the earliest fortifications made far greater use of natural defenses and topography
Topography

Topography is the study of Earth's surface shape and features or those ofplanets, Natural satellite, and asteroids. It is also the description of such surface shapes and features ....
 than anything man-made. These kogoishi and chiyashi never intended as long-term defensive positions, let alone residences; the native peoples of the archipelago built fortifications when they were needed and abandoned the sites afterwards.

The Yamato people
Yamato people

The are the dominant native ethnic group of Japan. It is a term that came to be used around the late 19th century to distinguish the residents of the mainland Japan from other minority ethnic groups who have resided in the peripheral areas of Japan such as Ainu people, Ryukyuan people, Nivkhs, Oroks, as well as Korean people, Taiwanese people, and...
 began to build cities in earnest in the 7th century, complete with expansive palace complexes, surrounded on four sides with walls and impressive gates. Earthworks and wooden fortresses were also built throughout the countryside to defend the territory from the native Emishi
Emishi

The name Emishi was used by the Japanese to designate people who lived in northeastern Honshu in what is today known as the Tohoku region but appears in contemporary sources as michi no oku ....
, Ainu
Ainu people

are an ethnic group indigenous peoples to Hokkaido, the Kuril Islands, and much of Sakhalin. There are most likely over 150,000 Ainu today; however the exact figure is not known as many Ainu hide their origin due to Ethnic issues in Japan....
 and other groups; unlike their primitive predecessors, these were relatively permanent structures, built in peacetime. These were largely built as extensions of natural features, and often consisted of little more than earthworks and wooden barricades.

The Nara period
Nara period

The of the history of Japan covers the years from AD 710 to 794. Empress Gemmei established the capital of Heijo-kyo . Except for 5 years , when the capital was briefly moved again, it remained the capital of Japanese civilization until Emperor Kammu established a new capital, Nagaoka-kyo, in 784 before moving to Heian-kyo , or Kyoto, a decade lat...
 (c. 710-794) fortress at Dazaifu
Dazaifu, Fukuoka

is a cities of Japan located in Fukuoka prefecture, Japan. Nearby cities include Onojo, Fukuoka and Chikushino, Fukuoka.As of 2005, the city has an estimated population of 67,428 and a population density of 2,277.20 persons per km?....
, from which all of Kyushu
Kyushu

or Kyushu is the third-largest island of Japan and most southwesterly of its Japanese Archipelago. Its alternate ancient names include Kyukoku , Chinzei , and Tsukushi-no-shima ....
 would be governed and defended for centuries afterwards, was originally constructed in this manner, and remnants can still be seen today. A bulwark was constructed around the fortress to serve as a moat to aid in the defense of the structure; in accordance with military strategies and philosophies of the time, it would only be filled with water at times of conflict. This was called a mizuki, or "water fort". The character for castle or fortress, up until sometime in the 9th century or later, was read (pronounced) ki, as in this example, mizuki.

Though fairly basic in construction and appearance, these wooden and earthwork structures were designed to impress just as much as to function effectively against attack. Chinese and Korean architecture strongly influenced the design of Japanese buildings, including fortifications, in this period. The remains or ruins of some of these fortresses, decidedly different from what would come later, can still be seen in certain parts of Kyushu and Tohoku today.

Medieval period

The Heian period
Heian period

The is the last division of classical History of Japan, running from 794 to 1185. It is the period in Japanese history when Confucianism and other Chinese culture were at their height....
 (794-1185) saw a shift from the need to defend the entire state from invaders to that of lords defending individual mansions or territories from one another. Though battles were still continually fought in the north-east portion of Honshu
Honshu

or Honshu is the largest island of Japan. The nation's main island, it is south of Hokkaido across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyushu across the Kanmon Strait....
 (the Tohoku region) against native peoples, the rise of the samurai warrior class
Samurai

is the term for the military nobility of Pre-industrial society Japan. According to translator William Scott Wilson: "In Chinese, the character ? was originally a verb meaning to wait upon or accompany a person in the upper ranks of society, and this is also true of the original term in Japanese, saburau....
 towards the end of the period, and various disputes between noble families jostling for power and influence in the Imperial Court brought about further developments. The primary defensive concern in the archipelago was no longer native tribes or foreign invaders, but rather internal conflicts within Japan, between rival samurai
Samurai

is the term for the military nobility of Pre-industrial society Japan. According to translator William Scott Wilson: "In Chinese, the character ? was originally a verb meaning to wait upon or accompany a person in the upper ranks of society, and this is also true of the original term in Japanese, saburau....
 clans or other increasingly large and powerful factions, and as a result, defensive strategies and attitudes were forced to change and adapt. As factions emerged and loyalties shifted, clans and factions which had been allies in the service of the Imperial Court became enemies, and defensive networks were broken, or altered through the shifting of alliances.

The Genpei War
Genpei War

The was a conflict between the Taira and Minamoto clan clans and in late-Heian period Japan. It resulted in the fall of the Taira clan and establishment of the Kamakura shogunate under Minamoto Yoritomo in 1192....
 (1180-1185) between the Minamoto
Minamoto clan

was one of the honorary surnames bestowed by the Emperors of Japan of the Heian Period on those of their sons and grandsons who were not considered eligible for the throne....
 and Taira clan
Taira clan

The was a major Japanese clan in historical Japan.In reference to History of Japan, along with Minamoto, Taira was a hereditary clan name bestowed by the emperors of the Heian Period to certain ex-members of the imperial family when they became subjects....
s, and the Nanboku-cho
Nanboku-cho

The , spanning from 1336 to 1392, was a period that occurred during the formative years of the Muromachi bakufu of Japan's history. During this period, there existed a Northern Court , established by Ashikaga Takauji in Kyoto, and a Southern Imperial Court, established by Emperor Go-Daigo in Yoshino District, Nara....
 Wars (1336-1392) between the Northern and Southern Imperial Courts are the primary conflicts that define these developments during what it sometimes called Japan's medieval period.

Fortifications were still built almost entirely out of wood, and were based largely on earlier modes, and on Chinese and Korean examples. But they began to become larger, to incorporate more buildings, to accommodate larger armies, and to be conceived as more permanent structures. This mode of fortification, developed gradually from earlier modes and used throughout the wars of the Heian period
Heian period

The is the last division of classical History of Japan, running from 794 to 1185. It is the period in Japanese history when Confucianism and other Chinese culture were at their height....
 (770-1185), and deployed to help defend the shores of Kyushu from the Mongol invasions
Mongol invasions of Japan

The of 1274 and 1281 were major military invasions and conquests undertaken by Kublai Khan to take the Japanese islands after the capitulation of Goryeo....
 of the 13th century, reached its climax in the 1330s, during the Nanboku-cho period. Chihaya castle
Chihaya Castle

was a Japanese castle, constructed in 1332 by Kusunoki Masashige. Consisting primarily of wooden and earthworks defenses, Chihaya stands as a keen example of fortress design of Japan's Nanboku-cho period....
 and Akasaka castle, permanent castle complexes containing a number of buildings but no tall keep towers, and surrounded by wooden walls, were built by Kusunoki Masashige
Kusunoki Masashige

Kusunoki Masashige was a 14th century samurai who fought for Emperor Go-Daigo in his attempt to wrest rulership of Japan away from the Kamakura shogunate and is remembered as the ideal of samurai loyalty....
 to be as militarily effective as possible, within the technology and designs of the time.

The Ashikaga shogunate
Ashikaga shogunate

The was a feudal military dictatorship ruled by the shoguns of the Ashikaga family.This period is also known as the Muromachi period and gets its name from the Muromachi street of Kyoto where the third shogun Yoshimitsu established his residence....
, established in the 1330s, had a tenuous grip on the archipelago, and maintained relative peace for over a century. Castle design and organization continued to develop under the Ashikaga shogunate, and throughout the Sengoku period. Castle complexes became fairly elaborate, containing a number of structures, some of which were quite complex internally, as they now served as residences, command centers, and a number of other purposes.

Sengoku
The Onin War
Onin War

The was a civil war from 1467 to 1477 during the Muromachi period in Japan. A dispute between Hosokawa Katsumoto and Yamana Sozen escalated into a nationwide war involving the Ashikaga shogunate and a number of daimyo in many regions of Japan....
 which broke out in 1467, however, marked the beginning of a period of nearly 150 years of widespread warfare (called the Sengoku period
Sengoku period

The was a time of social upheaval, political intrigue, and nearly constant military conflict in Japan that lasted roughly from the middle of the 15th century to the beginning of the 17th century....
) between daimyo (feudal lords) across the entire archipelago. For the duration of the Onin War (1467-1477), and into the Sengoku period, the entire city of Kyoto became a battlefield, and suffered extensive damage. Noble family mansions across the city became increasingly fortified over this ten year period, and attempts were made to isolate the city as a whole from the marauding armies of samurai which would dominate the landscape for over a century.

As regional officials and others became the daimyo, and the country descended into war, they began to quickly add to their power bases, securing their primary residences, and constructing additional fortifications in tactically advantageous or important locations. Originally conceived as purely defensive (martial) structures, or as retirement bunkers where a lord could safely ride out periods of violence in his lands, over the course of the Sengoku period, many of these mountain castles developed into permanent residences, with elaborate exteriors and lavish interiors.

The beginnings of the shapes and styles now considered to be stereotypical "classic" Japanese castle design emerged at this time, and castle towns (???, jokamachi, lit. "town below castle") also appeared, grew and developed. Despite these developments, though, for most of the Sengoku period castles remained essentially larger, more complex versions of the simple wooden fortifications of centuries earlier. It was not until the last thirty years of the period of war that drastic changes would occur to bring about the emergence of the type of castle typified by Himeji castle
Himeji Castle

is a flatland-mountain Japanese castle complex located in Himeji in Hyogo Prefecture and comprising 83 wooden buildings. It is occasionally known as Hakurojo or Shirasagijo because of its brilliant white exterior....
, the Imperial Palace
Kokyo

is the imperial main residence of the Emperor of Japan. It is a large park-like area located in Chiyoda, Tokyo close to Tokyo Station and contains various buildings such as the main palace and the private residences of the imperial family....
, and other castles surviving today. This period of war culminated in the Azuchi-Momoyama period, which saw some of the largest battles in the pre-modern world, and saw great advances in military technology, strategy and tactics.

Azuchi-Momoyama period

Unlike in Europe
Europe

Europe is, conventionally, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally divided from Asia to its east by the water divide of the Ural Mountains, the Ural , the Caspian Sea, and by the Caucasus Mountains to the southeast....
, where the advent of cannon
Cannon

A cannon is any tubular piece of artillery, that uses gunpowder or other usually explosive-based propellants to launch a projectile over a distance....
 spelled the end of the age of castles, Japanese castle-building was spurred, ironically, by the introduction of firearms. Though firearms first appeared in Japan in 1543, and castle design almost immediately saw developments in reaction, Azuchi castle, built in the 1570s, was the first example of a largely new type of castle, on a larger, grander scale than those which came before, boasting a large stone base (????, musha-gaeshi), a complex arrangement of concentric bailey
Motte-and-bailey

A motte-and-bailey is a form of castle. Many were built in Britain in the Middle Ages, Ireland and France in the 11th and 12th centuries, favoured as a relatively cheap but effective defensive fortification that could repel most small attack forces....
s (?, maru), and a tall central tower. In addition, the castle was located on a plain, rather than on a densely forested mountain, and relied more heavily on architecture and manmade defenses than on its natural environment for protection. These features, along with the general appearance and organization of the Japanese castle, which had matured by this point, have come to define the stereotypical Japanese castle. Along with Hideyoshi's Fushimi-Momoyama castle, Azuchi lends its name to the brief Azuchi-Momoyama period
Azuchi-Momoyama period

The came at the end of the Sengoku period in Japan, when the political unification that preceded the establishment of the Tokugawa shogunate took place....
 (roughly 1568-1600) in which these types of castles, used for military defense, flourished.

Osakacastlem0704
The introduction of the arquebus
Arquebus

The arquebus is an early Muzzle -loaded firearm used in the 15th to 17th centuries. In distinction from its predecessor, the hand cannon, it has a matchlock....
 brought dramatic shifts in battle tactics and military attitudes in Japan. Though these shifts were complex and numerous, one of the concepts key to changes in castle design at this time was that of battle at range. Though archery duels traditionally preceded samurai battles since the Heian period
Heian period

The is the last division of classical History of Japan, running from 794 to 1185. It is the period in Japanese history when Confucianism and other Chinese culture were at their height....
 or earlier, exchanges of fire with arquebuses had a far more dramatic effect on the outcome of the battle; hand-to-hand fighting, while still extremely common, was diminished by the coordinated use of firearms.

Oda Nobunaga
Oda Nobunaga

was a major daimyo during the Sengoku period of History of Japan. He was the second son of Oda Nobuhide, a deputy shugo with land holdings in Owari province....
, one of the most expert commanders in the coordinated tactical use of the new weapon, built his Azuchi castle, which has since come to be seen as the paradigm of the new phase of castle design, with these considerations in mind. The stone foundation resisted damage from arquebus balls better than wood or earthworks, and the overall larger scale of the complex added to the difficulty of destroying it. Tall towers and the castle's location on a plain provided greater visibility from which the garrison could employ their guns, and the complex set of courtyards and baileys provided additional opportunities for defenders to retake portions of the castle that had fallen.

Cannon were rare in Japan due to the expense of obtaining them from foreigners, and the difficulty in casting such weapons themselves as the foundries used to make bronze temple bells were simply unsuited to the production of iron or steel cannon. The few cannon that were used were smaller and weaker than those used in European sieges, and many of them were in fact taken from European ships and remounted to serve on land; where the advent of cannon and other artillery brought an end to stone castles in Europe, wooden ones would remain in Japan for several centuries longer. A few castles boasted 'wall guns', but these are presumed to be little more than glorified arquebuses, lacking the power of a true cannon. When siege weapons were used in Japan, they were most often trebuchet
Trebuchet

A trebuchet or trebucket is a siege engine that was employed in the Middle Ages either to smash masonry walls or to throw projectiles over them....
s or catapult
Catapult

A catapult is any one of a number of non-handheld mechanical devices used to throw a projectile a great distance without the aid of an explosive substance?particularly various types of ancient and medieval siege engines....
s in the Chinese
China

China is a Culture of China, an ancient civilization, and, depending on perspective, a national or multinational entity extending over a large area in East Asia....
 style, and they were used as anti-personnel weapons. There is no record that the goal of destroying walls ever entered into the strategy of a Japanese siege. In fact, it was often seen to be more honorable, and more tactically advantageous on the part of the defender for him to lead his forces into battle outside the castle. When battles were not resolved in this way, out in the open, sieges were almost always undertaken purely by denying supplies to the castle, an effort which could last years, but involved little more than surrounding the castle with a force of sufficient size until a surrender could be elicited.

The crucial development that spurred the emergence of a new type of defensive architecture was, thus, not cannon, but the advent of firearms. Arquebus
Arquebus

The arquebus is an early Muzzle -loaded firearm used in the 15th to 17th centuries. In distinction from its predecessor, the hand cannon, it has a matchlock....
 firing squads and cavalry charges could overcome wooden stockades with relative ease, and so stone castles came into use.

Azuchi was destroyed within years of its completion, but it nevertheless ushered in a new period of castle-building; among the many castles built in the ensuing years was Hideyoshi's Osaka castle
Osaka Castle

is a Japanese castle in Chuo-ku, Osaka, Osaka, Osaka Prefecture, Japan.Originally called Ozakajo, it is one of Japan's most famous castles, and played a major role in the unification of Japan during the sixteenth century of the Azuchi-Momoyama period....
, completed in 1583. This incorporated all the new features and construction philosophies of Azuchi, and was larger, more prominently located, and longer-lasting. It was the last bastion of resistance against the establishment of the Tokugawa shogunate (see Siege of Osaka
Siege of Osaka

The was a series of battles undertaken by the Tokugawa shogunate against the Toyotomi clan, and ending in that clan's destruction. Divided into two stages , and lasting from 1614 to 1615, the siege put an end to the last major armed opposition to the shogunate's establishment....
), and remained prominent if not politically or militarily significant, as the city of Osaka
Osaka

is a Cities of Japan in Japan, located at the mouth of the Yodo River on Osaka Bay, in the Kansai region of the main island of Honshu.Osaka is a City designated by government ordinance under the Local Autonomy Law and the capital city of Osaka Prefecture....
 grew up around it, developing into one of Japan's primary commercial centers.

Though stone was sometimes used to shore up defenses or foundations for a few centuries prior, Azuchi's distinctive style of stone base was the first of its kind, and was seen in every castle constructed afterwards. The Japanese used cannon very infrequently, and thus, despite the relatively fragile wooden buildings which comprised the castle complex, the heavy stone foundations were often more than sufficient to repel arquebus fire. Whether intentionally or not, these foundations also proved very resilient against Japan's frequent earthquakes.

This period saw the climax of earlier developments towards larger buildings, more complex and concentrated construction, and more elaborate design, both externally and in the castles' interiors. European castle design began to have an impact as well in this period, though the castle had long been in decline in Europe by this point.

In Japanese politics and warfare, the castle served not only as a fortress, but as the residence of the daimyo, or feudal lord, and as a symbol of his power. Fushimi-Momoyama castle, which was meant to serve as a luxurious retirement home for Toyotomi Hideyoshi, serves as a popular example of this development. Though it resembled other castles of the period on the outside, the inside was extremely lavishly decorated, and the castle is famous for having a tea room covered in gold leaf. Fushimi was by no means an exception, and many castles bore varying amounts of golden ornamentation on their exteriors. Osaka castle was only one of a number of castles which boasted golden roof tiles, and sculptures of fish, cranes, and tigers. Certainly, outside of such displays of precious metals, the overall aesthetics of the architecture and interiors remained extremely important, as they do in most aspects of Japanese culture.

Some especially powerful families controlled not one, but a whole string of castles, consisting of a main castle (honjo) and a number of satellite castles (shijo) spread throughout their territory. Though the shijo were sometimes full-fledged castles with stone bases, they were more frequently fortresses of wood and earthenworks. Often, a system of fire beacons, drums
Taiko

means "drum" in Japanese language . Outside Japan, the word is often used to refer to any of the various Japanese drums and to the relatively recent art-form of ensemble taiko drumming ....
, or conch shells
Horagai

The conch shell, blown as a trumpet, served a number of purposes in Japanese history. It is called ', ', or a number of other names in Japanese depending on its function....
 was set up to enable communications between these castles over a great distance. The Hojo family's
Late Hojo clan

The was one of the most powerful warrior clans in Japan in the Sengoku period and held domains primarily in the Kanto region.The clan began when Ise Shinkuro, a high ranking officer in the shogunate, began to conquer lands and build up his power at the beginning of the 16th century....
 Odawara Castle
Odawara Castle

is a landmark in the Municipality of Japan of Odawara, Kanagawa in Kanagawa prefecture, Japan. It was the stronghold of various daimyo during the Muromachi period of History of Japan....
 and its network of satellites was one of the most powerful examples of this honjo-shijo system; the Hojo controlled so much land that a hierarchy of sub-satellite networks was created

Korea

Toyotomi Hideyoshi
Toyotomi Hideyoshi

was a Sengoku period daimyo who unified Japan. He succeeded his former liege lord, Oda Nobunaga, and brought an end to the Sengoku period. The period of his rule is often called the Momoyama period, after Hideyoshi's castle....
's invasions of Korea took place between 1592 and 1598, at the same time as the high point in Azuchi-Momoyama style castle construction within Japan. Many Japanese castles (called Wajo ?? in Japanese and Waeseong in Korean) were built along the southern shores of Korea
Korea

Korea is a geographic area composed of two sovereign countries, a civilization, and a former state situated on the Korean Peninsula in East Asia....
. All that remains of these castles today are the stone bases.

Edo period

The Sengoku period
Sengoku period

The was a time of social upheaval, political intrigue, and nearly constant military conflict in Japan that lasted roughly from the middle of the 15th century to the beginning of the 17th century....
, roughly a century and a half of war which saw great changes and developments in military tactics and equipment, as well as the emergence of the Azuchi-Momoyama style castle, was followed by the Edo period
Edo period

The , or , is a division of History of Japan running from 1603 to 1868. The period marks the governance of the Edo or Tokugawa shogunate, which was officially established in 1603 by the first Edo shogun Tokugawa Ieyasu....
, over two hundred and fifty years of peace, beginning around 1600-1615 and ending in 1868. Edo period castles, including those which survived from the preceding Azuchi-Momoyama period, therefore no longer had defense against outside forces as their primary purpose. Rather, they served primarily as luxurious homes for the daimyo, their families and retainers, and to protect the daimyo, and his power base, against peasant uprisings and other internal insurrections. The Tokugawa shogunate
Tokugawa shogunate

The Tokugawa shogunate, also known as the , and the , was a feudalism regime of Japan established by Tokugawa Ieyasu and ruled by the shoguns of the Tokugawa family....
, in order to forestall the amassing of power on the part of the daimyo, enforced a number of regulations limiting the number of castles to one per han
Han (Japan)

The , or domains, were the fiefs of feudal lords of Japan that were created by Toyotomi Hideyoshi and existed until their Abolition of the han system in 1871, three years after the Meiji Restoration....
 (feudal domain), with a few exceptions, and a number of other policies including that of sankin kotai
Sankin kotai

Sankin kotai was a policy of the shogunate during most of the Edo period of History of Japan. The purpose was to control the daimyo. In adopting the policy, the shogunate was continuing and refining similar policies of Toyotomi Hideyoshi....
. Though there were also, at times, restrictions on the size and furnishings of these castles, and many daimyo grew quite poor later in the period, daimyo nevertheless sought as much as possible to use their castles as representations of their power and wealth. The general architectural style did not change much from more martial times, but the furnishings and indoor arrangements could be quite lavish.

This restriction on the number of castles allowed each han had profound effects not only politically, as intended, but socially, and in terms of the castles themselves. Where members of the samurai class had previously lived in or around the great number of castles sprinkling the landscape, they now became concentrated in the capitals of the han and in Edo
Edo

, literally: Headlands and bays-door, "estuary", ), also Romanization of Japanese as Yedo or Yeddo, is the Geographical renaming of the Capital of Japan Tokyo, and was the seat of power for the Tokugawa shogunate which ruled Japan from 1603 to 1868....
; the resulting concentration of samurai in the cities, and their near-total absence from the countryside and from cities that were not feudal capitals (Kyoto and Osaka in particular) were important features of the social and cultural landscape of the Edo period. Meanwhile, the castles in the han capitals inevitably expanded, not only to accommodate the increased number of samurai they now had to support, but also to represent the prestige and power of the daimyo, now consolidated into a single castle. Edo castle, expanded by a factor of twenty between roughly 1600 and 1636 after becoming the shogunal seat, though obviously something of an exception, the shogun not being a regular daimyo, nevertheless serves as a fine example of these developments. These vastly consolidated and expanded castles, and the great number of samurai living, by necessity, in and around them, thus led to an explosion in urban growth in 17th century Japan.

As contact with Western powers increased in the middle of the 19th century, some castles such as Goryokaku castle in Hokkaido
Hokkaido

, formerly known as Ezo, Yezo, Yeso, or Yesso, is Japan's second largest island and the largest, northernmost of its 47 prefectures of Japan....
 were turned once again to martial purposes. No longer needed to resist samurai cavalry charges, or arquebus squads, attempts were made to convert Goryokaku, and a handful of other castles across the country, into defensible positions against the cannon of Western naval vessels.

Castles in Japan today

Matsumotocastle
All castles, along with the feudal domains themselves, were turned over to the Meiji government in the 1871 abolition of the han system
Abolition of the han system

The was an act, in 1871, of the new Meiji government of the Empire of Japan to replace the traditional feudal domain system and to introduce centralized government authority ....
. During the Meiji Restoration
Meiji Restoration

The , also known as the Meiji Ishin, Revolution, or Renewal, was a chain of events that led to enormous changes in Japan's political and social structure....
, these castles were viewed as symbols of the previous ruling elite, and nearly 2,000 of the remaining castles were dismantled or destroyed. Many of the remaining casltes in Japan today are reconstructions. Some of them are made of concrete designed to resemble the original wooden structures. All castles, along with a number of sites of historical or natural significance, are protected under a series of laws promulgated for that purpose. The first came in 1919, and was followed ten years later by the 1929 National Treasure Preservation Law.

Some castles were destroyed in World War II
World War II

World War II, or the Second World War , was a global military conflict which involved a Participants in World War II, including all of the great powers, organised into two opposing military alliances: the Allies of World War II and the Axis powers....
 including Hiroshima Castle. However, many of the structures remaining after the Meiji Restoration were damaged.

Architecture and defenses

Japanese castles came to be built in a variety of environments, but all were constructed within variations of a fairly well-defined architectural scheme. Yamashiro, or "mountain castles" were the most common, and provided the best natural defenses. However, castles built on flat plains (??, hirashiro) and those built on lowlands hills (???, hirayamashiro) were not uncommon, and a few very isolated castles were even built on small natural or artificial islands in lakes or the sea, or along the shore.

Walls and foundations

Kumamotocastle
Japanese castles were almost always built atop a hill or mound, and often an artificial mound would be created for this purpose. This not only aided greatly in the defense of the castle, but also allowed it a greater view over the surrounding land, and made the castle look more impressive and intimidating. In some ways, the use of stone, and the development of the architectural style of the castle, was a natural step up from the wooden stockades of earlier centuries. The hills gave Japanese castles sloping walls, which many argue helped (incidentally) to defend them from Japan's frequent earthquakes. There is some disagreement among scholars as to whether or not these stone bases were easy to scale; some argue that the stones made for easy hand- and footholds., while others retort that the bases were steep, and individual stones could be as large as twenty feet high, making them difficult if not next to impossible to scale.

Thus, a number of other measures were invented to keep attackers off the walls, including pots of hot sand, gun emplacements, and arrow slits from which defenders could fire at attackers while still enjoying nearly full cover. Spaces in the walls for firing from were called sama; Arrow slits were called yasama, gun emplacements tepposama and the rarer, later spaces for cannon were known as taihosama Unlike in European castles, which had walkways built into the walls, in Japanese castles, the walls' timbers would be left sticking inwards, and planks would simply be placed over them to provide a surface for archers or gunners to stand on. This standing space was often called the ishi uchi tana or "stone throwing shelf." Other tactics to hinder attackers' approaches to the walls included caltrops, bamboo spikes planted into the ground at a diagonal, or the use of felled trees, their branches facing outwards and presenting an obstacle to an approaching army. Many castles also had trapdoors built into their towers, and some even suspended logs from ropes, to be dropped on attackers.

The Ano family from Omi Province
Omi Province

is an old provinces of Japan of Japan, which today comprises Shiga Prefecture. It was one of the provinces that made up the Tosando Circuit . It is nicknamed as ...
 were the foremost castle architects in the late 16th century, and were renowned for building the 45-degree stone bases, which began to be used for keeps, gatehouses, and corner towers, not just for the castle mound as a whole.

Japanese castles, like their European cousins, featured massive stone walls and large moats. However, walls were restricted to the castle compound itself; they were never extended around a jokamachi (castle town), and only very rarely were built along borders. This comes from Japan's long history of not fearing invasion, and stands in stark contrast to philosophies of defensive architecture in Europe, China, and many other parts of the world. Even within the walls, a very different architectural style and philosophy applied, as compared to the corresponding European examples. A number of tile-roofed buildings, constructed from plaster over skeletons of wooden beams, lay within the walls, and in later castles, some of these structures would be placed atop smaller stone-covered mounds. These wooden structures were surprisingly fireproof, as a result of the plaster used on the walls. Sometimes a small portion of a building would be constructed of stone, providing a space to store and contain gunpowder.

Though the area inside the walls could be quite large, it did not encompass fields or peasants' homes, and the vast majority of commoners likewise lived outside the castle walls. Samurai lived almost exclusively within the compound, those of higher rank living closer to the daimyo's central keep. In some larger castles, such as Himeji, a secondary inner moat was constructed between this more central area of residences and the outer section where lower-ranking samurai kept their residences. Only a very few commoners, those directly in the employ and service of the daimyo or his retainers, lived within the walls, and they were often designated portions of the compound to live in, according to their occupation, for purposes of administrative efficiency. Overall, it can be said that castle compounds contained only those structures belonging to the daimyo and his retainers, and those important to the administration of the domain.

Layout

The primary method of defense lay in the arrangement of the baileys
Motte-and-bailey

A motte-and-bailey is a form of castle. Many were built in Britain in the Middle Ages, Ireland and France in the 11th and 12th centuries, favoured as a relatively cheap but effective defensive fortification that could repel most small attack forces....
, called maru or . Maru, meaning 'round' or 'circle' in most contexts, here refers to sections of the castle, separated by courtyards. Some castles were arranged in concentric circles, each maru lying within the last, while others lay their maru in a row; most used some combination of these two layouts. Since most Japanese castles were built atop a mountain or hill, the topography of the location determined the layout of the maru.

The most central bailey, containing the keep, was called honmaru, and the second and third were called ni-no-maru and san-no-maru respectively. These areas contained the main tower and residence of the daimyo, the storerooms (kura), and the living quarters of the garrison. Larger castles would have additional encircling sections, called soto-guruwa or soguruwa. At many castles still standing today in Japan, only the honmaru remains. Nijo Castle
Nijo Castle

is a flatland castle located in Kyoto, Japan. The castle consists of two concentric rings of fortifications, the Ninomaru Palace, the ruins of the Honmaru Palace, various support buildings and several gardens....
 in Kyoto is an interesting exception, in that the ni-no-maru still stands, while all that remains of the honmaru is the stone base.

The arrangement of gates and walls sees one of the key tactical differences in design between the Japanese castle and its European counterpart. A complex system of a great many gates and courtyards leading up to the central keep serves as one of the key defensive elements. This was, particularly in the case of larger or more important castles, very carefully arranged to impede an invading army and to allow fallen outer portions of the compound to be regained with relative ease by the garrisons of the inner portion. The defenses of Himeji castle are an excellent example of this. Since sieges rarely involved the wholesale destruction of walls, castle designers and defenders could anticipate the ways in which an invading army would move through the compound, from one gate to another. As an invading army passed through the outer rings of the Himeji compound, it would find itself directly under windows from which rocks, hot sand, or other things could be dropped, and also in a position which made them easy shots for archers in the castle's towers. Gates were often placed at tight corners, forcing a bottleneck
Bottleneck

Bottleneck literally refers to the top narrow part of a bottle. Figuratively, it may also refer:* Bottleneck * Bottleneck * Bottleneck * Bottleneck guitar, also known as slide guitar...
 effect upon the invading force, or even simply at right angles within a square courtyard. Passageways would often lead to blind alleys, and the layout would often prevent visitors (or invaders) from being able to see ahead to where different passages might lead. All in all, these measures made it impossible to enter a castle and travel straight to the keep. Invading armies, as well as, presumably, anyone else entering the castle, would be forced to travel around and around the complex, more or less in a spiral, gradually approaching the center, all while the defenders prepared for battle, and rained down arrows and worse upon the attackers.

All of that said, however, castles were rarely forcibly invaded. It was considered more honorable, and more appropriate, for a defender's army to sally forth from the castle to confront his attackers. When this did not happen, sieges were most often performed not through the use of siege weapons or other methods of forced entry, but by surrounding the enemy castle and simply denying food, water, or other supplies to the fortress. As this tactic could often take months or even years to see results, the besieging army sometimes even built their own castle or fortress nearby. This being the case, "the castle was less a defensive fortress than a symbol of defensive capacity with which to impress or discourage the enemy". It of course also served as the lord's residence, a center of authority and governance, and in various ways a similar function to military barracks
Barracks

Barracks are living quarters for personnel on a military post. They are typically very plain and all of the buildings in the housing unit are often uniform structures....
.

Buildings

The castle keep, usually three to five stories tall, is known as the tenshukaku, and may be linked to a number of smaller buildings of two or three stories. Some castles, notably Azuchi, had keeps of as many as seven stories. The tallest and most elaborate building in the complex, and often also the largest, the keep was the residence of the daimyo and his central command post. Interestingly, the number of stories and building layout as perceived from outside the keep rarely corresponds to the actual internal layout; for example, what appeared to be the third story from outside may have in fact been the fourth. This certainly must have helped to confuse attackers, preventing them from knowing which story or which window to attack, and likely disorienting the attacker somewhat once he made his way in through a window.

The least militarily equipped of the castle buildings, the keep was defended by the walls and towers, and its ornamental role was never ignored; few buildings in Japan, least of all castle keeps, were ever built with attention to function purely over artistic and architectural form. Keeps were meant to be impressive not only in their size and in implying military might, but also in their beauty and the implication of a daimyo's wealth. Though obviously well within the general sphere of Japanese architecture
Japanese architecture

has a long history as any other aspect of Culture of Japan. Originally heavily influenced by Chinese architecture from the Tang Dynasty , it has also developed many differences and aspects which are indigenous to Japan....
, much of the aesthetics and design of the castle was quite distinct from styles or influences seen in Shinto shrines, Buddhist temples, or Japanese homes. The intricate gable
Gable

A gable is the generally triangular portion of a wall between the edges of a sloping roof. The shape of the gable and how it is detailed depends on the structural system being used and aesthetic concerns....
s and windows are a fine example of this.

On those occasions when a castle was infiltrated or invaded by enemy forces, the central keep served as the last bastion of refuge, and a point from which counter-attacks and attempts to retake the castle could be made. If the castle ultimately fell, certain rooms within the keep would more often than not become the site of the seppuku
Seppuku

is a form of Japanese Suicide#Ritual suicide by disembowelment. Seppuku was originally reserved only for samurai. Part of the samurai honor code, seppuku was used voluntarily by samurai to die with honor rather than fall into the hands of their enemies, as a form of capital punishment for samurai who have committed serious offenses, and for reason...
 (ritual suicide) of the daimyo, his family, and closest retainers.

Kokura Castle From the Japanese Garden
Palisade
Palisade

A palisade is a steel or wooden fence or wall of variable height, usually used as a defensive structure....
s lined the top of the castle's walls, and patches of trees, usually pine
Pine

Pines are Pinophyta trees in the genus Pinus, in the family Pinaceae. They make up the monotypic subfamily Pinoideae. There are about 115 species of pine, although different authorities accept between 105 and 125 species....
s, symbolic of eternity or immortality, were planted along them. These served the dual purpose of adding natural beautiful scenery to a daimyo's home, representing part of his garden, and also obscuring the insides of the castle compound from spies or scouts. A variety of towers or turrets, called yagura
Yagura

Yagura is the Japanese word for "tower" or "turret." The word is most often seen in reference to structures within Japanese castle compounds, but can be used in a variety of other situations as well....
, placed at the corners of the walls, over the gates, or in other positions, served a number of purposes. Though some were used for the obvious defensive purposes, and as watchtowers, others served as water towers or for moon-viewing. As the residences of purportedly wealthy and powerful lords, towers for moon-viewing, balconies for taking in the scenery, tea rooms and gardens proliferated. These were by no means solely martial structures, but many elements served dual purposes. Gardens and orchards, for example, though primarily simply for the purpose of adding beauty and a degree of luxuriousness to the lord's residence, could also provide water and fruit in case of supplies running down due to siege, as well as wood for a variety of purposes.

See also

  • Gusuku
    Gusuku

    , or just suku , is the Okinawan language word for "castle" or "fortress." In standard Japanese language, the kanji ? is pronounced "shiro"....
     - the castles of Okinawa
  • Jin'ya
    Jin'ya

    During the Edo period of History of Japan, a was the administrative headquarters of a small Han or parcel of land held by the Tokugawa shogunate, as well as the residence of the head of the administration, and the associated grain storehouse....
  • List of castles in Japan
    List of castles in Japan

    This is a list of castles in Japan. Also see Japanese castle....

Gallery

Aerial views of Japanese castles reveal a consistent military strategy which informs the over-all planning for each unique location.

Literature



External links

  • Over 100 Japanese Castles]
  • A Western Perspective - Focus on Castle Ruins