Ecclesiastical prince of Liége.

Canon of the Cathedral of Saint-Lambert (1735). Archdeacon of Hesbaye (1757). Chief minister of the prince-évêque de Liége (c.1757-63). Abbot of Cheminon (1765). Prince-évêque de Liége (1772-84). Distinguished for his numerous social service projects, including a public library, an obstetrical school, and the Hôpital général de Saint-Léonard, a home for orphans, aged persons, vagabonds, and unwed mothers.

Son of comte Maximilien-Henri von Velbruck and baronne Marie-Anne von Wachtendonck.