Lifespan: Unknown to 2/3 of Tenbun 18 (1549)
Other Names: Nobuyasu (?), Nobuaki, Shinseisai (monk’s name)
Title: Director of the Bureau of Academics
Clan: Kazusa-Takeda (Mariyatsu family)
Father: Mariyatsu Nobukatsu
Siblings: Jokan, Zenhō
Children: Yoshinobu