Etymology and distribution of 忍沢.

Oshizawa 【忍沢】^{レベル2
About 20}  The Japanese surnames etymology dictionary.

Fukuoka-ken , Miyazaki-ken , Tokushima-ken .

① things . Tokushima-ken tells that he brought a bridge over the moat during the castle attack, so that he was renamed from Aoyama surname as a warrior of warring States and Azuchi-Momoyama era warrior Mr. Hachisuka. Tokushima-ken Tokushima-shi Tokushima Town Tokushima Clan in the Tokushima Town, Tokugima Town of Nagasaki-ken Tsushima-shi was in the Edo period in the Tsushima Fuchu Samurai of the Clan Agency. 青山 Aoyama reference.

※ In the Tokushima-ken Tokushima-shi Kuramoto there is a belief that the clouds of Aichi-ken western part (formerly Owari Kuni) came out in the Edo period as a result. Location unknown.

② Fukuoka-ken Yame-gun Hirokawa-machi Originated from a lava bridge in Suwon.