Tomonobu served Uesugi Kenshin and held Akata Castle in Echigo province. He fought in many of Kenshin's battles, including campaigns in Etchû, Shinano, and the Kanto. After Kenshin's death, Tomonobu supported Uesugi Kagekatsu in his war for control of Echigo with Uesugi Kagetora and was afterwards involved in the war with Shibata Katsuie (of the Oda).
References
- Initial text from Sengoku Biographical Dictionary (Samurai-Archives.com) FWSeal & CEWest, 2005