Etymology and distribution of 在定.

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

Okayama-ken . Okayama-ken Takahashi-shi Originated from parents of a small character in Kase Town. Okayama-ken Takahashi-shi The castle owner of Bishin Matsuyama Castle, located in Uchiyama under the name of Mimura parents during the Warring States period. 三村 Mimura reference.