Etymology and distribution of 廣場.

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

Kumamoto-ken . Variant of 諸富 . Kumamoto-ken Kumamoto-shi Chuo-ku Honmaru was in the Edo era in the Kumamoto samurai of the Clan office, in Ooita-ken Hita-shi in the Azuchi-Momoyama era. Ooita-ken Hita-shi Higashi Arita Muroto (Morodome) The town has been recorded since the Edo era. There were also pronunciations of Morozumi and Morodomi, where the place name was also written as "masters" and "various wealth".