Masanari was the son of Inaba Ittetsu and like his father served Oda Nobunaga and then Toyotomi Hideyoshi. He eventually received a 25,000-koku fief in Echigo province at Itoigawa (1619).
References
- Initial text from Sengoku Biographical Dictionary (Samurai-Archives.com) FWSeal & CEWest, 2005