1. The Authoritative Text: Raymond of Penyafort's Editing of the 'Decretals of Gregory IX' (1234) Reno, Edward Andrew 2011 Theses Middle AgesHistoryCanon lawCatholic ChurchPapacyThirteenth centuryRaymond, of Peñafort, Saint, 1175?-1275Gregory IX, Pope, approximately 1170-1241Decretales Gregorii IX (Catholic Church)