Etymology and distribution of ベンアルハージ.

Ben'aruhāji* 【ベンアルハージ】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Kouchi-ken . Tell Kouchi-ken Shimanto-shi that he came from Kyouto-fu Kyouto-shi in 1468 (2 years ago) and came around in 1541 (Astronomical Decade). There is a transmission that it was renamed from Kawakubo surname due to the life of former parent Chosuke Okabe who is warrior of Sengoku period · Azuchi Momoyama period. 川窪 Kawakubo reference. There is also a tradition of Nara-ken 's departure.