Destined for the Church, he was archdeacon and then vicar general of the first Bishop of Dijon and of his successor.

In 1764 he was made commendatory abbot of the Abbey of Conches in the diocese of Evreux.

In 1772 as the representative of the Holy See, he presided over the general chapter of the Friars Minor in Grenoble.

He died on January 14, 1791, before the election of the Constitutional bishop Jean-Baptiste Royer.

The latter was the son of Gabriel senior's elder brother Claude-Antoine, coseigneur of Quincey.