In fact, the family provided many high ecclesiastics; Bishop Piligrim of Passau (971–991) as well as the archbishops Aribo of Mainz (1021–1031) and his brother Pilgrim of Cologne (1021–1036) were Aribonids, as their names would suggest.
Millstatt Abbey was founded as a proprietary monastery by the Chiemgau count Aribo II (1024–1102), a scion of the Aribonid dynasty and former Count palatine of Bavaria, and his brother Poto on their estates in the newly established Duchy of Carinthia.