Sogō Kazumasa

Sogō Kazumasa
十河一存
Lord of Kawachi
Succeeded byMiyoshi Yoshitsugu
Personal details
Born1532
Shōzui Castle, Awa Province (Tokushima)
DiedApril 2, 1561 (aged 29)
Izumi Province
RelationsMiyoshi Motonaga (father)
Miyoshi Nagayoshi (brother)
Miyoshi Yoshikata (brother)
Atagi Fuyuyasu (brother)
Miyoshi Yoshitsugu (son)
Sogō Masayasu (adopted son)
NicknameOni Sogō
Military service
Allegiance Miyoshi clan
UnitSogō clan

Sogō Kazumasa (十河 一存, 1532 – April 2, 1561), other name Sogō Kazunari (十河 和也), fourth son of Miyoshi Motonaga, was a Japanese samurai of the Sengoku period who was a member of Miyoshi clan, daimyō of Kawachi Province.

Miyoshi Nagayoshi (eldest), Miyoshi Yukiyasu (second) and Atagi Fuyuyasu (third) are his elder brothers and Miyoshi Yoshitsugu is his son (later became Nagayoshi's adopted son). He latterly adopted Miyoshi Nagaharu (Yukiyasu's son) his child. He adopted Miyoshi Yoshikata's son, Masayasu.

His nickname was Oni Sogō as he was well known for his fighting skill and fierce like an Oni.