Etymology and distribution of 齊信.

Saishin 【齊信】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Mie-ken , Miyazaki-ken , Ibaraki-ken . Last name including "island", 藤原 surname. Mie-ken Iga-shi · Nabari city (old: Iga country) was in Warring States period. Saitama-ken Kumagaya-shi It was Kamiyuki in the Edo period. 藤原 Fujiwara reference.