Hisaaki was a son of Kawamura Tadakatsu (1507-1592). He was highly regarded by Shimazu Yoshihisa and rose to a high position at an early age. In 1568 he served under the command of Shimazu Yoshihiro against the Sagara family. In the course of the fighting, he was surrounded by enemy troops and slain.
- Initial text from Samurai-Archives.com FWSeal & CEWest, 2005