[4] They had: The 2 July 1214, he fought alongside the future King of France, Louis VIII at the Battle of Roche-au-Moines, which saw a French victory, thanks to the decisive action of his father-in-law, Guillaume des Roches against the English troops of "Jean sans Terre" John, King of England.

[5] During the siege of Toulouse, Amaury and numerous other nobles openly criticized Montfort's tactics.

[7] In 1222, following the death of Guillaume des Roches, Amaury took the title of sénéchal of Anjou, Maine and Touraine.

He was thus confronted with the pretension of Pierre Mauclerc, Peter I, Duke of Brittany, who had his sights on Anjou.

His wife, Jeanne des Roches, became guardian of their son Maurice IV de Craon (1213-1250), future Seneschal of Anjou.