was a Japanese samurai

Samurai

is the term for the military nobility of pre-industrial Japan. According to translator William Scott Wilson: "In Chinese, the character 侍 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...

 of the Sengoku period

Sengoku period

The or Warring States period in Japanese history was a time of social upheaval, political intrigue, and nearly constant military conflict that lasted roughly from the middle of the 15th century to the beginning of the 17th century. The name "Sengoku" was adopted by Japanese historians in reference...

 who lived into the early 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....

; he served the Oda

ODA

*ODA or Oda may refer to:*Oda , a typical Albanian room*Oda , is a room within harem especially in the Ottoman Empire- Computing :* Open Data Center Alliance - Data Center and Cloud Infrastructure Standards...

 clan, the Toyotomi, and then the Tokugawa

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...

. He was also the daimyo

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...

 of the Takamatsu Domain

Takamatsu Domain

The was a han or feudal domain in Sanuki Province , Japan during the Edo period. The domain was governed first by the Ikoma family then by the Mito-Matsudaira clan.-History:...

.

Kazumasa was the eldest son of Ikoma Chikamasa

Ikoma Chikamasa

Ikoma Chikamasa was a daimyo during the Azuchi-Momoyama period of the 16th century to the Edo period of the 17th century of Japan. He was appointed to one of three chu-rō by Toyotomi Hideyoshi. His father was Ikoma Chikashige....

. He fought with distinction under Oda Nobunaga, and then in Korea with Toyotomi Hideyoshi

Toyotomi Hideyoshi

was a daimyo warrior, general and politician of the Sengoku period. He unified the political factions of 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, named after Hideyoshi's castle...

's forces. He sided with the Tokugawa at the Battle of Sekigahara

Battle of Sekigahara

The , popularly known as the , was a decisive battle on October 21, 1600 which cleared the path to the Shogunate for Tokugawa Ieyasu...

, though his father sided with the forces of Ishida Mitsunari

Ishida Mitsunari

Ishida Mitsunari was a samurai who led the Western army in the Battle of Sekigahara following the Azuchi-Momoyama period of the 17th century. Also known by his court title, Jibunoshō...

; as a result, the Ikoma family's fief was saved. His father yielded him headship in 1600. It was then that the fief's capital was moved from Marugame Castle

Marugame Castle

, also known as Kameyama Castle and Horai Castle, is a hirayamashiro located in Marugame, Kagawa Prefecture, Japan.-History:...

 to Takamatsu Castle

Takamatsu castle

Takamatsu Castle may refer to:*Takamatsu Castle situated in Bitchu province, , besieged in 1582...

.

After Kazumasa's death in 1610, his son Masatoshi

Ikoma Masatoshi

was a Japanese samurai of the late Azuchi-Momoyama period, who lived into the early Edo period. He was also the daimyo of the Takamatsu Domain.Masatoshi fought at the Siege of Osaka in 1614, commanding a detached force on the side of the Tokugawa....

succeeded him.