According to the 1195 last will and testament of TAIRA no Chikanori ("Toin buruiki" (categorized collection of court events and practices by the Toin family), in the same year he merged three Taira family related temples Byodo-ji Temple, Sonju-ji Temple and Goho-ji Temple, and constructed three Goken-do halls in Izumoji (a 'Goken-do hall' is a Buddha statue hall with a five bay long facade).
建久6年（1195年）の平親範置文（『洞院部類記』）という史料によると、同年、平親範は平等寺、尊重寺、護法寺という平家ゆかりの3つの寺院を併合し、出雲路に五間堂3棟を建てたという（「五間堂」とは間口の柱間が5つある仏堂の意）。