Etymology and distribution of 乙訓.

Otokuni 【乙訓】^{レベル3
About 400}  The Japanese surnames etymology dictionary.

Oosaka-fu , Wakayama-ken , Miyagi-ken .

① Wakayama-ken Arida-gun Aridagawa-chou It was in Shimizu castle in Shimizu from 1573 to 1592 (Tensho year). Miyagi-ken Tooda-gun Wakuya-chou was in the Edo period.

② Kumamoto-ken Amakusa-shi Originated from Kasamatsu in Kura-cho, Uraga.

③ Ishikawa-ken Kanazawa-shi birth of Kasabai. A place name with a record since the Warring States Period. Uses "Kasa" of Kasabai. It is distributed in the same place.

④ Kagoshima-ken Soo-shi Originated from Kasamatsu, a small figure of Iwakawa Osumi cho. There was a Kasamatsu residence of the gate division system in the Edo period in the same place.

Otsukuni 【乙訓】^{レベル3
About 400}  The Japanese surnames etymology dictionary.

風井 Kazei reference.