Patroclus had been Bishop of Arles circ. 416, and the then Bishop of Rome, Zosimus, had granted him metropolitan rights over the provinces of S.E. Gaul, which did not gain the acceptance of the other chief bishops in the district, and Boniface I. (Ep. 12), in 422, seems to have withdrawn the rights granted by Zosimus (Schaff, I, p. 297).