was a daimyō

Daimyo

is a generic term referring to the powerful territorial lords in pre-modern Japan who ruled most of the country from their vast, hereditary land holdings...

in mid-Edo period

Edo period

The , or , is a division of Japanese history which was ruled by the shoguns of the Tokugawa family, running from 1603 to 1868. The political entity of this period was the Tokugawa shogunate....

 Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

.

His courtesy title was Tango-no-kami.

Biography

Yonekura Tadasuke was the sixth son of Yanagisawa Yoshiyasu

Yanagisawa Yoshiyasu

was a Japanese samurai of the Edo period He was an official in the Tokugawa shogunate and he was a favorite of the fifth shogun, Tokugawa Tsunayoshi....

, a favorite of Shogun

Shogun

A was one of the hereditary military dictators of Japan from 1192 to 1867. In this period, the shoguns, or their shikken regents , were the de facto rulers of Japan though they were nominally appointed by the emperor...

 Tokugawa Tsunayoshi

Tokugawa Tsunayoshi

was the fifth shogun of the Tokugawa dynasty of Japan. He was the younger brother of Tokugawa Ietsuna, thus making him the son of Tokugawa Iemitsu, the grandson of Tokugawa Hidetada, and the great-grandson of Tokugawa Ieyasu....

 who served in a number of important posts within the administration of the Tokugawa shogunate

Tokugawa shogunate

The Tokugawa shogunate, also known as the and the , was a feudal regime of Japan established by Tokugawa Ieyasu and ruled by the shoguns of the Tokugawa family. This period is known as the Edo period and gets its name from the capital city, Edo, which is now called Tokyo, after the name was...

. In 1710, he was adopted by Yonekura Masateru, the daimyō of Minagawa Domain in Shimotsuke Province

Shimotsuke Province

is an old province of Japan in the area of Tochigi Prefecture in the Kanto region. It was sometimes called or .The ancient capital of the province was near the city of Tochigi, but in feudal times the main center of the province was near the modern capital, Utsunomiya.-History:Different parts of...

, and succeeded to the head of the Yonekura clan

Yonekura clan

The was a cadet branch of the Takeda clan of Kai Province, some members of whom rose to positions of importance within the administration of the Tokugawa shogunate in mid-Edo period Japan....

 and daimyo of Minagawa two years later. On September 1, 1716, he was received in a formal audience by Shogun Tokugawa Yoshimune

Tokugawa Yoshimune

was the eighth shogun of the Tokugawa shogunate of Japan, ruling from 1716 until his abdication in 1745. He was the son of Tokugawa Mitsusada, the grandson of Tokugawa Yorinobu, and the great-grandson of Tokugawa Ieyasu.-Lineage:...

. On July 27, 1722, he transferred the seat of the Yonekura clan to Mutsuura Domain

Mutsuura Domain

' was a Japanese feudal domain of the Edo period, located in southern Musashi Province in what is now part of Kanagawa Prefecture. Mutsuura was a Fudai domain. It consisted of two separate geographic areas, one in Kuragi District, Musashi, and the other in Osumi District, Sagami, with its...

 in southern Musashi Province

Musashi Province

was a province of Japan, which today comprises Tokyo Prefecture, most of Saitama Prefecture and part of Kanagawa Prefecture. It was sometimes called . The province encompassed Kawasaki and Yokohama...

, (modern-day Kanazawa-ku, Yokohama

Kanazawa-ku, Yokohama

is one of the 18 wards of the city of Yokohama in Kanagawa Prefecture, Japan. As of 2010, the ward had an estimated population of 209,565 and a density of 6,760 persons per km². The total area was 31.01 km². The ward symbol, established 1987, expresses the image of sea, waves, and a sea...

, Kanagawa prefecture

Kanagawa Prefecture

is a prefecture located in the southern Kantō region of Japan. The capital is Yokohama. Kanagawa is part of the Greater Tokyo Area.-History:The prefecture has some archaeological sites going back to the Jōmon period...

), where his descendants continued to reside until the Meiji Restoration

Meiji Restoration

The , also known as the Meiji Ishin, Revolution, Reform or Renewal, was a chain of events that restored imperial rule to Japan in 1868...

.

Yonelura Tadasuke died of illness at the young age of 30, leaving behind Yonekura Satonori

Yonekura Satonori

was the 2nd daimyō of Mutsuura Domain in southern Musashi Province, Honshū, Japan and 5th head of the Yonekura clan. His courtesy title was Tango-no-kami.-Biography:...

, his two-year-old heir. This resulted in a O-Ie Sōdō

O-Ie Sodo

O-Ie Sōdō were noble family disputes within the samurai and aristocratic classes of Japan, particularly during the early Edo period...

, in which some of his retainers misrepresented the young heir’s age to the shogunate.

Yonekura Tadasuke was married to a daughter of Honda Tadanao, the daimyō of Koriyama Domain in Yamato Province

Yamato Province

was a province of Japan, located in Kinai, corresponding to present-day Nara Prefecture in Honshū. It was also called . At first, the name was written with one different character , and for about ten years after 737, this was revised to use more desirable characters . The final revision was made in...

.