Lifespan: Unknown to 9/10 of Tenshō 3 (1575)
Other Names: Mataemon (common)
Rank: bushō
Clan: Asano
Lord: Oda clan → Toyotomi Hideyoshi
Father: Asano Nagatoshi or Asano Nagakata
Siblings: Sister (wife of Yasui Shigetsugu), Nagatada (?), Nagasue (?), Nagakatsu, Nagatsugu (?)
Wife: Nanamagari-dono
Adopted Children: Nene (Kōdai-in), Yaya (Chōsei-in), Yabei (adopted as son-in-law and heir, later known as Asano Nagamasa)