The mitered archpriest of Borgo

Right portal, in the tympanum. The figure is seated on a chair, dressed with shirt, chain mail and chasuble, the miter and the pastoral; he is recognised as the archpriest of Saint Donnino's church, but from a pallium reserved to the bishops from the Medieval times it is deduced that he could be San Gerardo della Porta, from Piacenza (d. 1119) bishop and patron of Potenza.