In 1759 he became grand master of the palace and prime minister to John Theodore of Bavaria, then bishop of Liège and the head of a sumptuous court.
From 1731 till 1738 he worked in Maastricht, after which he established himself in Liège, where he was made court painter of the prince-bishops Georges-Louis de Berghes, John Theodore of Bavaria and Charles-Nicolas d'Oultremont.
He was buried in Saint-Lambert Cathedral in Liège while his heart was buried in Grace Chapel, Altötting.
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