Born in Toulouse, he was educated in the University of Paris, where he achieved licentiate in theology.

After having been ordained priest he became vicar general of the archdiocese of Rouen for seven years.

Elected bishop of Laon on 18 September 1741 he was also French ambassador to the Holy See from 1758 to 1762.

Pope Clement XIII created him cardinal priest in the consistory of 23 November 1761 with the title of Sant'Eusebio.

This article about a Roman Catholic cardinal from France is a stub.