He is not the same 'Shuen' who studied the Tendai Sect teachings under Gishin before declaring himself Tendai Zasu (Chief Tendai Sect Abbot) after his master's death in the face of opposition from sect followers, reside at Murosan-ji Temple in Yamato Province, and give rise to so-called 'Muro Tendai' (refer to the works of Hidenori TSUJI).
義真から天台教学を学び、義真の没後は義真に代わって後にいう天台座主を私に襲うも宗徒の反対にあい、大和国室生山寺に住し、いわゆる「室生天台」を現出させた「円修」とは別人（逵日出典の著作参照）。