Etymology and distribution of 寅磐.

Toraiwa 【寅磐】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Kanagawa-ken , Yamaguchi-ken , Ooita-ken .

① Aichi-ken Toyokawa-shi Otsu-machi birth of broad stone. A place name with a record since the Warring States Period. Aichi-ken Nishio-shi Nishiki-machi was in the Edo period in the Nishio Samurai of the Clan Office.

② Hyougo-ken Sumoto-shi Gokomachi Hiromuishi, Hirofumi, Hiroshi birth origin. Place name in the Heian era with the notation "pebble" recorded. The place name also pronounced Hiraisi. Hyougo-ken Sasayama-shi Tradition in Kure Cloth Town.

③ Hyougo-ken Shisou-shi Originated from a small stone in Nishiyama, Chika-cho.