Yamashiro Hiroshi

Yamashiro Hiroshi was a leader of the Yamashiro house, a branch of the Matsuura warrior bands of Hizen Province. In 1337 Ashikaga Tadayoshi confirmed his stewardship of Yamashiro and other lands in the Uno estate. In 1350 Hiroshi transferred lands including Yamashiro to his eldest son Tsutomu.

During the wars of the Northern and Southern Courts he took the Northern Court side with his kinsmen of the Matsuura party, and in 1359 he fought at the Battle of the Chikugo River in the army of Shōni Yorihisa.