Etymology and distribution of 應長.

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

Kyouto-fu · Hokkaidou , Hyougo-ken . Terrain . Kyouto-fu Ayabe-shi When the lord came to hunt at the house of Okamoto surname that was in the deepest part of Hayoyaoka town, it is said that a cool wind blew back from the depths during the Edo period. In estimation Kyouto-fu Ayabe-shi Hirose-machi is the lord of the Yamatee clan of the clan government. 岡本 Okamoto reference.