Etymology and distribution of 冬山.

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

Ehime-ken Uwajima-shi , Ehime-ken Yawatahama-shi . A variant of 薬師寺 . Ehime-ken Yawatahama-shi When the castle owner of Iino in Yamashi dropped in 1584 (Tensho 12 years), he retired in Yakushido which was in the same place and became the priest of Hello Tenman at the Yakushiji temple, Tell him that you changed your family name. 薬師寺 Yakushiji reference.