Etymology and distribution of 花圓.

Hanamaru 【花圓】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Ibaraki-ken Jousou-shi , Toukyou-to . Ibaraki-ken Shimotsuma-shi The birth of everyone. A place name with a record since the Edo period. The place name was also written as "everyone feathers". Ibaraki-ken Jousou-shi It was in the Warring States Period as the vassal of Mr. Toyoda who was the castle owner of Toyoda Castle of Toyota.