Etymology and distribution of 静楽.

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

Hyougo-ken Shisou-shi . Korean type . Terrain . Added "river" to Zhao. There is a record of naturalization on Toukyou-to Toshima-ku on October 11, 1967. The real name is Zhao. It was with Mr. Gen. The real name is Zhao. 趙 Chou reference.