 In the battle of Patay (18 June 1429) which followed he was one of the commanders, and was taken prisoner by Taneguy du Chatel (one of the murderers of John the Fearless in 1419).He remained in prison until 1435, and a curious petition contains the terms of his ransom.He was shortly afterwards appointed seneschal of Guienne, and in that capacity won much popularity at Bordeaux.