Patroclus of Arles is not to be confused with Bishop Patroclus of Marseille, who claimed to be metropolitan of Gallia Narbonensis Secunda, a matter dealt with by Pope Zosimus in a letter of 29 September 417. Philipp Jaffé (1885). Regesta pontificum Romanorum: ab condita Ecclesia ad annum post Christum natum MCXCVIII (in Latin). Vol. Tomus I (altera ed.). Leipzig: Veit. pp. 49, no. 334.