Etymology and distribution of 正長.

Shounaga 【正長】^{レベル2
About 20}  The Japanese surnames etymology dictionary.

Toyama-ken , Aomori-ken Hachinohe-shi , Oosaka-fu .

① Ishikawa-ken Kashima-gun Nakanoto-machi birth of Takebe. A place name with a record since the Warring States Period.

② Heteromorphism of the 建部 . Kyouto-fu tells that the descendant of Mr. Tsukuba of the northern part (formerly Tango) was called. 建部 Tatebe reference.