Saga

Saga lies in the low plain of Hizen, north of the Ariake Sea. The Ryūzōji family made Muranaka Castle their seat and, under Ryūzōji Takanobu, built a power that reached across much of northern Kyushu. After his death, the Nabeshima emerged as the leading house. Nabeshima Naoshige expanded the old stronghold into Saga Castle, and his son Katsushige entered its new inner residence in 1611, establishing the centre of Saga domain.