In 1378, Yoshitada was ordered to suppress Shotoku HASHIMOTO of the Southern Court who had raised an army in the Kii province, and dispatched troops with Ujikiyo YAMANA, his younger brother.
永和(日本)4年(1378年)紀伊国で挙兵した南朝(日本)方の橋本正督討伐を命じられ、弟の山名氏清と出兵。