Katsutoyo was a son of Shibukawa Hachizaemon and was adopted by Shibata Katsuie. In 1582, following the Kiyosu conference, Katsutoyo was placed at Nagahama castle in northern Ômi.
References
- Initial text from Sengoku Biographical Dictionary (Samurai-Archives.com) FWSeal & CEWest, 2005