Etymology and distribution of 付城.

Tsukeshiro 【付城】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Hokkaidou Otaru - shi , Hokkaidou Sapporo - shi , Kumamoto - ken Kumamoto - shi Nishi - ku. There are cases where a child means "North". 藤原 family name is present. 藤原 Fujiwara reference.