Hidetada served the Nagao of Echigo and was one of the key supporters death of Nagao Harukage after the death of the latter's father, Tamekage. He committed suicide when his castle of Niiyama was brought down by Takanashi Sadayori, a supporter of Nagao Kagetora (Uesugi Kenshin).
References
- Initial text from Sengoku Biographical Dictionary (Samurai-Archives.com) FWSeal & CEWest, 2005