Iwayagano 【岩屋ケ野】2 The Japanese surnames etymology dictionary.
Kouchi-ken , Shizuoka-ken , Aichi-ken . 藤原 's variant. Kouchi - ken Takaoka - gun Sakawa - chou Nagano Tell her that he changed his name from Fujiwara surname in 1601 (Keicho 6) in the river. Yamanashi-ken Hokuto-shi In Hakusu Town Hanasui there is a tradition with Mr. Fujiwara's descendant. 藤原 reference. Shizuoka-ken Hamamatsu-shi Tells Pioneer in Horiya, Hamakita-ku. Aichi-ken Kitashitara-gun Shitara-chou There is a transmission with Mr. Sugawara's descendant in Kanda. 菅原 reference.