From 1346 to 1370, the Itokuin of Jion-ji Temple was located in the current location of Jogon-in Temple, which is a Tendai Sect temple built by Ujiyori ROKKAKU of Sasaki clan and Rokkaku clan as Omi-no-kuni shugo (Military Commissioner of Omi-no-kuni).
現在の浄厳院の地には、正平(日本)年間（1346年-1370年）近江国守護佐々木氏六角氏の六角氏頼より建立された天台宗寺院の慈恩寺威徳院があった。