Jacobus Clemens Non Papa Also Jacques Clément Or Jacob Clemens Non Papa C. 1510 To 1515 – 1555 Or 1556 Was A Franco-Flemish Composer Of The Renaissance. He Was A Prolific Composer In Many Of The Current Styles And Was Especially Famous For His Polyphonic Settings Of The Psalms In Dutch Known As The Souterliedekens.