Murayama

Murayama is the inland country around the Yamagata basin in Dewa. From Yamagata Castle, Mogami Yoshiaki expanded his power over much of the province, enlarging the fortress with three rings of moats and earthworks. In 1600, as rival armies fought for supremacy elsewhere in Japan, his forces defended Hasedō Castle against an invasion by the Uesugi. Yoshiaki's subsequent rewards made him one of the great lords of the northeast.