Gaston, Duke of Orléans
Grenaille was born in Uzerche. A monk at Bordeaux and Agen, he left his monastery to come to Paris, where he published several works and was for 26 years historian to Gaston, Duke of Orléans. He won major notoriety, engaging in politics, but his zeal led to his imprisonment in the Bastille for a year (1648–1649). On leaving prison, he returned to château du Puy-Grolier in Uzerche, where he died.