Paulinus I was the first Patriarch of Aquileia from 557 to 571.
When he took over the see was in schism with Rome. When the Lombards invaded northern Italy in 569, Paulinus fled Aquileia with his treasures, as had the other Archibishop in schism with Rome, Honoratus of Milan. Paulinus transferred his see to Grado, a small island opposite Aquileia, which was still controlled by the Byzantines, but retained the title of Patriarch of Aquileia. He died soon after arriving in Grado.[1]