Etymology and distribution of 鳥當.

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

Aichi-ken , Gunma-ken , Kanagawa-ken . Occupation . "Mr. Fujiwara of Military Ministry" means. Tell them that it was called in Aki -ken Tahara-shi (formerly Atsumi-gun) in 1091 (Kanji 5 years). Fukuoka-ken Fukuoka-shi Chuo-ku Umekoen , Fukuoka-ken Fukutsu-shi Tradition in Hanamigaoka. Saga-ken Kanzaki-shi Chiyoda-cho Sakimura resides in the Edo period before immigrating to the same place. It was recorded in Aichi-ken eastern part (formerly Mikawa country) in 1083 (3 years warranty). 藤原 Fujiwara reference.