The Jinbo family of Etchû province, at one time possible retainers of the Hatakeyama, were almost constantly at war with local rivals such as the Shiina and the ikko-ikki. Defeated by Nagao Tamekage in 1520, they enjoyed a brief period of local power under Jinbo Nagamoto but when Uesugi Kenshin sided with Shiina they lost their castle, Toyama, and at length became Uesugi vassals.
References
- Initial text from Sengoku Biographical Dictionary (Samurai-Archives.com) FWSeal & CEWest, 2005