Shimazu Ujihisa
Shimazu Ujihisa (1328–1387) was a Northern and Southern Courts commander and the fourth son of the Shimazu head Sadahisa. In 1352 his father gave him military command over Ōsumi, where he fought the local Hatakeyama governor, briefly joining the Southern Court in 1356 before returning to the Ashikaga side and becoming Ōsumi shugo in 1363.
He expanded into Hyūga and traded with Ming China. Enraged by Imagawa Ryōshun's murder of Shōni Fuyusuke in 1375, he repeatedly rebelled and submitted, defeating Ryōshun's cousin at Minohara in 1379. He died in 1387.