Etymology and distribution of 為沙.

Isa 【為沙】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Mie-ken Iga-shi . Originating after Mie-ken Iga-shi . A place name with a record since the Edo period. It was in Azuchi Momoyama period in the same place. It is distributed in the same place.