Etymology and distribution of 伊賀棒.

Igabou 【伊賀棒】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Toyama-ken . Summary . Abbreviation for Isa name. In Toyama-ken tells that the branch of Isa's surname was called by the end of the Edo period. 伊佐名 Izana reference.