Etymology and distribution of 長当.

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

Tokushima-ken , Toukyou-to , Niigata-ken . Heidi is rare.

① Convention . Abbreviation for Hino. In Shimane-ken western part (formerly Iwami-kuni), telling that he left "Hino" by saying "I got out of Mr. Hino." Estimated Muromachi era. 日野 Hino reference.

② Ooita-ken birth originated in Hizi-cho, Hayami-gun. A place name with a record since the Heian period. In Hyougo-ken there is a transmission with Nagasaki-ken Isahaya-shi from Konagai Town. He is pronounced.