(c.750-818) Confessor, born Ireland; died Auxerre, France. So great was his fame that Charlemagne invited him to his court and made him regent of the school of Paris from 775 until his death. After Alcuin's retirement (796), Clement was named master of the royal school at Aix-la-Chapelle. He is probably the author of a biography of Charlemagne. Buried in the church of Saint Amator. Feast, March 20,.