Etymology and distribution of デロバツ.

Derobatsu* 【デロバツ】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Chiba-ken Kisaradzu-shi . Variety of 鳩谷 . Chiba - ken Kisaradzu - shi tell him that he was engaged in fishing in Beef. Estimated in the Edo period. 鳩谷 Hatoya reference.