Etymology and distribution of 狹子.

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

Oosaka-fu Izumisano-shi · Toukyou-to Minato-ku . Good neighbor . Creation . Sanja (Sankei) is to devote himself to Buddha, Law, monk's three treasures. Oosaka-fu Izumisano-shi Meiji New surname by monk of Kosoji temple Koizumi in Tsuruhara. The temple tells that Mr. Shinkawa built from 1558 to 1570 (Year of the Year) and also called the Sanja family name. 新川 Shinkawa reference.

※ I was in Sengoku period in Ibaraki-ken Koga-shi . In the same place "Saniki" was also written. Sounding pronunciation.