He was lord of Yokoyama Castle and govern on Ejiri Castle at Suruga Province He was the son of Anayama Nobutomo and a nephew of Takeda Shingen, being a son of his elder sister Nanshōin.

[1] He had one son, Anayama Nobukimi, who lived for just fifteen years, 1572 to 1587.

In 1582, Enticed by Oda Nobunaga during his final invasion of Takeda domain in Shinano, Suruga and Kai, he defected to serve Tokugawa Ieyasu and surrendered his castle in Suruga Province, aiding Ieyasu in his campaign against Takeda Katsuyori.

Until this treason, he was considered one of the principal pillars of the house of Takeda.

[1] During the Honnō-ji Incident, Anayama Nobutada, who now an ally to Tokugawa and Nobunaga clan, were ambushed by the Ochimusha-gari during the journey, and killed along with some of his retainers.