Etymology and distribution of 古鞘.

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

Hyougo-ken , Tochigi-ken . Creation . The goddess means "God of land". Tochigi-ken Utsunomiya-shi It was in the Shogukura Town during the Edo period. In the same place tell Fujiwara's descendant. 藤原 Fujiwara reference.