, adopted son of Nagayoshi, was a 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 was practically the last head of Miyoshi clan

Miyoshi clan

The Miyoshi clan is a Japanese family descended from Emperor Seiwa and the Minamoto clan . They were a cadet branch of the Ogasawara clan and the Takeda clan....

, 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 Kawachi province

Kawachi Province

was a province of Japan in the eastern part of modern Osaka Prefecture. It originally held the southwestern area that was split off into Izumi Province...

 of 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...

.

Born to Sogō Kazumasa

Sogo Kazumasa

, other name Sogō Kazunari , fourth son of Miyoshi Motonaga, was a Japanese samurai of the Sengoku period who was a member of Miyoshi clan, daimyo of Kawachi province. Miyoshi Nagayoshi , Miyoshi Yukiyasu and Atagi Fuyuyasu are his elder brothers and Miyoshi Yoshitsugu is his son...

, younger brother of Miyoshi Nagayoshi, he was initially known as Sogō Shigemasa (十河 重存). After 1561 when his father died, he was reared by Nagayoshi. When Nagayoshi's eldest son Yoshioki died in 1563, he was adopted as a son and changed his surname

Surname

A surname is a name added to a given name and is part of a personal name. In many cases, a surname is a family name. Many dictionaries define "surname" as a synonym of "family name"...

 to Miyoshi. The following year when Nagayoshi died, Yoshitsugu succeeded him as head of the clan.

Nagamoto is his son.