Etymology and distribution of 忍沢.

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

Miyagi-ken Kesen'numa-shi , Shiga-ken Ootsu-shi .

① There is 笠間 surname. 笠間 Kasama reference.

※ Hiroshima-ken Yamagata-gun Kitahiroshima-chou Mr. Kasama who was in the Sengoku period in Kasadan Yamashiro of Azaka was also written as "Kasanuma".

② Shiga-ken Ootsu-shi Meiji New surname by monk of Shogun-ji of Jodo Shinshu in Kyoto - cho. In the temple, Osaka -fu Oosaka-shi was located near Osaka Castle in Chuo-ku, Chuo-ku, Ishiyama at the Ishiyama Honjyo Temple in Ishiyama Honjyo Temple in the Ishiyama battle between 1570 (Tensho 8 years) and 1580 (Tensho 8 years) in the Warring States Period and Azuchi Momoyama Period Tell him that it was given to you by a monk. The mountain of the temple is Kasanagiyama (Ryukokuzan).