was a 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...

ese 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 ruled the Yūki clan

Yuki clan

The Yūki family was a Japanese samurai clan composed of two branches: the Shimōsa Yūki and the Shirakawa Yūki. Descended from the famous kuge Fujiwara no Hidesato, the clan became split during the Nanboku-chō wars of the 14th century, in which one branch supported the Southern Imperial Court, and...

. He was the son of Yūki Masatomo. Masakatsu assumed family headship around 1525, he would then compose an official house code known as the Yūki-shi Shin Hatto ('Yūki clan New House Code'), which was completed by 1556. In September of 1559, Masakatsu died, and family headship passed to his adopted son Harutomo

Yūki Harutomo

was a retainer of the Japanese Hōjō clan and an early daimyo of Shimōsa Province. Harutomo was the son of Oyama Takatomo and was adopted by his uncle Yūki Masakatsu. Harutomo ultimately accepted the authority of the Hōjō, by his ties were severed when Toyotomi Hideyoshi besieged the Hōjō castle of...

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