Conversion front Greek Orthodoxy to Roman Catholicism in the Fourteenth Century

Abstract

Several prominent Byzantines, including the Emperor John V Palaiologos, converted to Roman Catholicism in the thirteenth and fourteenth centuries. This may seem an odd sort of conversion. After all, if the fundamental tenets of the Christian faith are contained in the Nicene Creed, then Greek Orthodox and Roman Catholic believers differ on only one tenet: whether the Holy Spirit proceeds from the Father or from the Father and the Son – the Filioque issue. For a Christian to admit the double procession of the Holy Spirit is hardly on the same level as admitting that Mohammed is the prophet of the one God. Indeed, many members of each church have been willing to call the procession of the Holy Spirit unknowable and leave it at that.