Etymology and distribution of 伊笠.

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

Mie-ken Inabe-shi , Tokushima-ken . A variant of 井尻 . Mie-ken Yokkaichi-shi The owner of Shinmei Omiya of Nichinaga is said to have been Ijiri surname. Tokushima-ken Tokushima-shi Tokushima-machi castle inside was in the Edo period in the Tokushima Samurai of the Clan office. 井尻 Ijiri reference.