Etymology and distribution of 藏丸.

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

Kanagawa-ken · Toukyou-to . Thing . From the old brush. Shiga-ken Tell her that an old writer expert from Gamo-gun got renamed from Hirasawa surname because he is a warrior of warring States and Azuchi-Momoyama era warrant Hideyoshi Toyotomi. 平沢 Hirasawa reference.