French cardinal. The son of a Calvinist minister, he became a RC in 1577/8. He helped to instruct Henry IV before his reception into the RC Church (1593) and was sent to Rome to secure his absolution from heresy in 1595. He was involved in a number of controversies, including that with P. du Plessis-Mornay in 1600. He was made a cardinal in 1604 and appointed Abp. of Sens in 1606. Both in his writings and in his famous ‘Harangue’ at the Estates General in 1615 he defended the Ultramontane position against the Gallican.