(1685-1757) Theologian and controversialist, born Revin, Belgium; died there. He entered the Dominican Order and became one of the most learned commentators of Saint Thomas's "Summa." A famous preacher, he defended publicly in Maastricht the doctrine of the Real Presence, silencing his Calvinist opponents by his incisive logic and extensive learning. For many years he held the offices of prior and provincial in his order.