Teruhiro was a son of Ôuchi Takahiro and a cousin of Ôuchi Yoshitaka. When the Ôuchi were brought down by the Môri in 1557, Teruhiro fled and continued to resist their rule, eventually aided in this by Amako loyalist Yamanaka Yukimori. In 1570 Teruhiro and Yamanaka attacked Izumo while the Môri were preoccupied with events on Kyushu. Môri Motonari's son Kikkawa Motoharu destroyed Teruhiro at Chausuyama in December of 1569.
- Initial text from Sengoku Biographical Dictionary (Samurai-Archives.com) FWSeal & CEWest, 2005