Etymology and distribution of 五定.

Gojou 【五定】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Miyagi-ken . Summary . Synthesis of Shishida and Sasaki. Miyagi-ken Kurihara-shi At the Seto Izumiya, Mr. Shishida took up the land that Mr. Sasaki lived in before living in 1763 (Honolulu 13th) and said that he called it from Shishida's "Shisha" and Sasaki "Tree" To tell. 宍田 Shishida reference. 佐々木 Sasaki reference.