Etymology and distribution of 炭沢.

Sumizawa 【炭沢】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Okayama-ken . There is a faithful in the name of a man. Okayama-ken Tsuyama-shi The shrine of the precious clothing shrine mulberry on Mulberry has become a shrine from 1532 to 1555 (astronomical year), and Tadashi Oshima's constant weight tells it is the founder of Chunxing. There is also a message with Mr. Fujiwara's descendant. Okayama-ken Souja-shi There is a sanctuary of Fujiwara Nozaki built in 1328 (3rd calendar year) in Kiyon Kakinagi. 大中臣 Oonakatomi reference. 藤原 Fujiwara reference.