Placuit apostolicae (Ep. 1) of Zosimus of Rome and the Ecclesiastical Reorganization of Gaul

Around the beginning of the fifth century the praetorian prefect for Gaul and the governor of Viennensis relocated their headquarters from Trier and Vienne respectively to Arles, which created a dispute between the bishops of Vienne and Arles as to whom should be metropolitan of the province of Viennensis. While the synod of Turin had proposed dividing the province in two ecclesiastically, problems emerged in 417 when Zosimus, bishop of Rome, within the first week of his election, asserted in his Epistula 1 (JK 328) that the bishop of Arles was to be metropolitan not only of Viennensis but over several provinces in the civil diocese of Septem Provinciae as well (depriving the bishops of Marseille, Vienne, and Narbonne of their metropolitan status) and thereby making him virtual papal vicar in the exercise of Roman prerogatives. This new arrangement created enormous religious conflict, as a further seven letters and synod in Rome in September 417 attest, including the efforts of Zosimus to declare the synod of Turin invalid. Ralph Mathisen investigated this episode and concluded that Zosimus’s efforts to assert his own authority over Gaul resulted only in uniting the Gallic churches against him. This paper seeks to analyse Zosimus’s involvement in Gaul and argues that this was not really his plan but rather that of the bishop of Arles. It also seeks to ask whether or not Zosimus anticipated the resultant conflict, as well as the authority by which he sought to make these changes.