Etymology and distribution of 大相.

Daisou 【大相】^{レベル2
About 20}  The Japanese surnames etymology dictionary.

Saitama-ken , Toukyou-to . Saitama-ken Kazo-shi It is distributed in Shinkawa Dori. There is a belief that Watanabe rope of the Heian era warrior lived in the same place with the enemy 's neck in mind. 渡辺 Watanabe reference.