Nanabe 【七部】3 The Japanese surnames etymology dictionary.
Hiroshima-ken , Kanagawa-ken . In Nara - ken tell Hiroshima - ken 's descendant of the Otomo family (Otomo No Yakamochi) who is a poet of the Nara period. The pronunciation in tradition is Tomotani. Kanagawa-ken Atsugi-shi It was in the Edo period in Okutsukoju. 大伴 reference.