Etymology and distribution of イイスター.

Iisutā* 【イイスター】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Tottori-ken Tottori-shi , Hyougo-ken . 池田 's variant. Estimatedly, Tottori-ken Tottori-shi Higashi Town renamed Mr. Ikeda of the lord of Tottori of the clan office and changed his name in the early Edo period. 池田 Ikeda reference.