Etymology and distribution of 山畳.

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

Miyagi-ken , Yamagata-ken , Hokkaidou . Summary . Sugawara's abbreviation. Oosaka-fu In Ikeda-shi Kanda say that the "Suga" of Sugawara surname was left around the time of the Kamakura period and he called the same place as "Sugai village". 菅原 Sugawara reference. Miyagi-ken Sendai-shi Aoba-ku Kawauchi was in the Edo era in the Sendai Samurai of the Clan office. The same clan says that he lived in Sugai of Fukushima-ken Kooriyama-shi (formerly Azuma-gun) and changed from Kan's surname. Period, location unknown. Fukushima-ken Kitakata-shi Toyokawa- choichi (old: Sugai) was a place name with a record since the Edo period. 菅名 Sugana reference.