Terukage was a son of Akai Teruyasu. He served Hôjô Ujiyasu and Ujimasa. Terukage held Tatebayashi castle in southeastern Kôzuke province. He was attacked by Yura Narushige, Tomioka Shigetomo, and others and abandoned Tatebayashi. He fled to Musashi province and his fate is unknown.
- Initial text from Sengoku Biographical Dictionary (Samurai-Archives.com) FWSeal & CEWest, 2005