Etymology and distribution of 大鈍内.

Oodonchi 【大鈍内】^{レベル2
About 20}  The Japanese surnames etymology dictionary.

Niigata-ken , Toukyou-to , Kanagawa-ken . Niigata-ken Nagaoka-shi In Azawa-machi I tell him that he came from the Matsunoyama of Niigata-ken Tookamachi-shi in the Sengoku period as a descendant of Mr. Adachi Sakae (alias: Sorori Onoda) who is the warrior of the Heian period and early Kamakura period. 安達 Adachi reference. 小野田 Onoda reference. There is also a story that the first son of Sweet leaves as a warrior of Sengoku period, Azuchi Momoyama period, Edo era went back home in the same place. 甘粕 Amakasu reference. Tochigi-ken Oyama-shi It was in the Edo period in Yawata Town.