Lifespan: 15xx to 9/2 of Bunroku 2 (1593)
Title: Vice Minister of Justice
Lord: Ōtomo Yoshimune → Kobayakawa Hidekane
Father: Monjūjo Shigetsura
Mother: Daughter of Kamachi Akimori
Siblings: Munekage, Shigeharu, Machino 正白
Wife: Cousin of Tachibana Muneshige
Monjūjo Munekage served as a bushō during the Sengoku and Azuchi-Momoyama periods. He served as the lord of Nagaiwa Castle in Chikugo Province. The Monjūjo were a key member of a group known as the Fifteen Castles of Chikugo comprised of fifteen high-ranking kokujin, or provincial landowners, based in Chikugo Province under the command of the Ōtomo clan of neighboring Bungo Province during the Sengoku period.
During this battle, Tachibana Muneshige rescued the Kobayakawa army so Munekage’s son, Monjūjo Masatsura, entered into service for the Tachibana clan.