Nobutomo was a son of Anayama Nobutsuna. He served Takeda Nobutora and was married to a daughter of the latter. When Nobutora was exiled from Kai in 1541, Nobutomo went on to serve Takeda Shingen. He held Shimoyama in Kai province.
- Initial text from Sengoku Biographical Dictionary (Samurai-Archives.com) FWSeal & CEWest, 2005