Etymology and distribution of 長谷岡.

Haseoka 【長谷岡】^{レベル2
About 40}  The Japanese surnames etymology dictionary.

Iwate-ken Oushuu-shi . Summary . Synthesis of Mita and Date. Iwate-ken Oushuu-shi Tell her that Maezawa Castle in Maezawa Binjo combined "Three" and "Tachi" because it was also a vassal of Mr. Mita who was a castle owner in the Muromachi period and was also a vassal of Mr. Date. 三田 Mita reference. 伊達 Date reference.