広島県、石川県、熊本県。シドウも含む分布。広島県でシドウ、大阪府でヨツフジが存在。合略。第二要素は藤原の「藤」から。「四」を含む姓あり。広島県では藤原氏の後裔と伝える。広島県三原市本郷町上北方に分布あり。石川県金沢市蚊爪町にある浄土真宗の静林寺の僧侶による明治新姓。同寺は1452年（享徳元年）に四藤氏が創建したと伝える。藤原参照。
Gifu-ken , Aichi-ken . Originated from Gifu-ken Seki-shi side island. A place name with a record since the Edo period.
Oosaka-fu Kishiwada-shi . Occupation . Oosaka-fu Kaidzuka-shi From the shop name of Sobahara shop, which is derived from Sobahara ( sovereign ). Sobahara is a geographical name with a record since the North-South morning era.
| Whole Japan | Prefectures | |
|---|---|---|
| レベル | 3 |
1 Hiroshima-ken(About 30) 2 Ishikawa-ken(About 20) 3 Kumamoto-ken(About 20) 4 Hokkaidou(About 10) 5 Oosaka-fu(About 10) 6 Aichi-ken(Very rare) 6 Miyazaki-ken(Very rare) 6 Chiba-ken(Very rare) 6 Hyougo-ken(Very rare) |
| Population | About 110 | |
| Ranking | 29,004 | |
| Rank by city |
|---|
|
1 Mihara-shi(About 20) 2 Kanazawa-shi(About 10) 2 Kumamoto-shi(About 10) 4 Hakusan-shi(Very rare) 4 Kaga-shi(Very rare) 4 Kamiamakusa-shi(Very rare) 4 Katano-shi(Very rare) 4 Nomi-shi(Very rare) 4 Uki-shi(Very rare) 4 Kobayashi-shi(Very rare) |
| Rank by subregion |
|---|
|
1 広島県 三原市 上北方(About 20) |
Shitou 【四藤】レベル3
About 110, Shidou 【四藤】レベル3
About 110, Yotsufuji 【四藤】レベル3
About 110 are referenced.
