Etymology and distribution of 永藏.

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

Tochigi-ken Tochigi-shi . Thing . From the knees of the body part. In Tochigi - ken , tell her whether he was asked to forgive by putting his knees after dishonoring Mr. Ashikaga as a descendant of Fujiwara. Estimated Muromachi era. Tochigi-ken Tochigi-shi It was in the Warring States Period to the castle owner of Fukiage castle in Fukiage-machi. 藤原 Fujiwara reference.