Etymology and distribution of 古豊.

Furutoyo 【古豊】^{レベル2
About 40}  The Japanese surnames etymology dictionary.

Aichi-ken , Tokushima-ken , Hiroshima-ken .

① Creation . Mr. Yasue (Yasu Eishi) retired in the southern part of Gifu-ken (formerly Mino country) and said that he retired. Estimated in the Edo period. 安江 Yasue reference.

② Creation . In Iwate-ken Oofunato-shi , tell him that Mr. Date, who was absent at the house of Ito Surname, gave it. Estimated in the Edo period. In Iwate-ken , Yasushi Ishii. 伊藤 Itou reference.

③ Hiroshima-ken Miyoshi-shi Originated from Yuiyodo's underwear in Oki-cho.