Braga had an important role in the "Christianization" of the Iberian Peninsula. The first known bishop of Braga, "Paternus", lived at the end of the 4th century, although Saint Ovidius (d. 135 AD) is sometimes considered one of the first bishops of this city. In the early 5th century, Paulus Orosius (a friend of Augustine of Hippo) wrote several theological works that expounded the Christian faith. Thanks to the work of Saint Martin of Braga the Suebi in Iberia renounced the Arian and Priscillianist heresies during two synods held here in the 6th century. At the time, Martin also founded an important monastery in Dumio ("Dume"), and it was in Braga that the Archbishopric of Braga held their councils. As a consequence, the archbishops of Braga later claimed the title of Primate of Portugal, then a county, and for a long period, claimed supremacy over the entire Hispanic church. Yet, their authority was never accepted throughout Hispania.