Etymology and distribution of 鳳京.

Houkyou 【鳳京】^{レベル3
About 80}  The Japanese surnames etymology dictionary.

Shizuoka-ken , Miyagi-ken , Toukyou-to . Distribution which also includes Yanaiitsu. Shizuoka-ken has 小柳津 surname. In Miyagi - ken it is Yanai. Fukushima-ken Yanatsu (Yanaiizu) town is a geographical name with a record since the Sengoku period. The place name was also written as "Yangjin." 小柳津 Oyaidzu reference.