Chisokuin Sosho was a chief priest of Chisoku-in Temple, a temple of the Soto sect of Zen Buddhism in Kamedani Village, Kume County, Hoki Province (Hokuei-cho, as of now), and worked for the Nanjo clan to serve as a negotiating monk.
伯耆国久米郡亀谷村（現・北栄町）の曹洞宗系寺院・知足院の住持で、南条氏に仕え、外交僧の役を務めた。