Etymology and distribution of 府和.

Fuwa 【府和】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Yamaguchi-ken . In Yamaguchi - ken Shimonoseki - shi telling that it was renamed from Sasaki surname at the end of the Edo period. 佐々木 Sasaki reference.

※ There is a transmission that supposed to have renamed at the Meiji New surname from Yuki surname. Period, location unknown. 由木 Yuuki reference.