Yoshikiyo was at first a daimyô in Shinano province and clashed with Takeda Shingen for a decade, winning the Battle of Uedahara in 1548 but suffering losses after that. When his castle was captured by the Takeda around 1550 he went for the support of Uesugi Kenshin, whom he assisted in the fights at Kawanakajima.
References
- Initial text from Samurai-Archives.com FWSeal & CEWest, 2005