At a time when both Bourbon France and Bourbon Spain thought of Parma as a strategic point of interest, Tillot favoured French policies abroad and wide-ranging reforms within the Duchy of Parma.
He was made marchese di Felino.
Tillot's career was of his own making.
The son of a valet de chambre, he studied at the Collège des Quatre-Nations at Paris, then went to the court of Charles III of Spain; after Charles' departure to be King of Sicily, Tillot was attached to the household of Philippe de Bourbon, whose private secretary and treasurer he became.