Etymology and distribution of 三昌.

Sanshou 【三昌】^{レベル3
About 70}  The Japanese surnames etymology dictionary.

Saitama-ken , Toukyou-to , Chiba-ken .

① There is 須加 surname. 須加 Suka reference.

② Saitama-ken Saitama-shi Originated in Iwatsuki ku Shinko Suka (ska). A place name with a record since the Edo period. It is distributed in the same place.

③ Kagoshima-ken Soo-shi Originated from Suga (Ska) in Minabata's Minamata Town.

④ Wakayama-ken Higashimuro-gun Kushimoto -chou Originated from Suga student in Kushimoto's underwear.

⑤ Ooita-ken Higashikunisaki-gun Originated from Suka, a small figure of Himeshima-mura .