He served in Italy under Marshal Brissac, and in the first Huguenot war, but his first great exploit was the capture of Orléans at the head of only fifteen cavaliers in 1567, during the second war. During the third war, at the battle of Jarnac in March 1569 he commanded the rearguard, and at Moncontour the following October he was taken prisoner; but he was exchanged in time to resume the governorship of Poitou, and to inflict a signal defeat on the royalist troops before Rochefort.