Baron Yamakawa Hiroshi (山川 浩, Hiroshi Yamakawa; 4 December 1845 – 6 March 1898) was a Japanese general, samurai, politician and educator. Originally a samurai from Aizu Domain during Bakumatsu, he became a general in the early Meiji era Imperial Japanese Army. He was also one of the first persons, together with his brother Kenjirō, to write a history of the Aizu War from the Aizu perspective. His brother-in-law was general Oyama Iwao, who married his sister Sutematsu.
Source: “Yamakawa Hiroshi”, English Wikipedia (CC BY-SA 4.0), excerpt