Iwaki
Iwaki lies on the Pacific side of southern Mutsu, where valleys descend from the Abukuma highlands towards the sea. The Iwaki family held this country before the Tokugawa settlement. In 1602 Torii Tadamasa took their place and began building a new castle at Taira. A town grew around its walls, and the castle became the seat of successive lords of the Iwakitaira domain.