Etymology and distribution of 二ツ家.

Futatsuya 【二ツ家】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Hyougo-ken , Kagawa-ken , Tokushima-ken . Kyouto - fu Kyouto - shi Temple of Kitano Tenmangu Shrine of Kamigyo - ku Takayoshi tells that the descendant of Mr. 十川 Sogawa reference. Fukui - ken Sakai - shi Takayanagi Takayanagi tells that descendants of Mr. Yashima called the Edo period. 八十島 Yasoshima reference.