Gaston, Duke of Orléans
Duke Henri II de Montmorency was solicited by Gaston, Duke of Orléans (brother of King Louis XIII) to launch a rebellion against the King's Chief Minister, Cardinal Richelieu. Using his position as Governor of Languedoc, he raised levies of troops and money and took command of an army of six or seven thousand troops. His force included a number of commanders who had previously served under him at the Battle of Avigliana including Brigadier Achille d'Étampes de Valençay.