Louis I, Duke of Orléans
During the 1429 Siege of Orléans, the French had planned to abandon the city after they heard rumours (which were true) that John Fastolf was coming with a force to reinforce the English besiegers. Jean de Dunois (known as "The Bastard of Orléans" as he was the illegitimate son of Louis I, Duke of Orléans) decided not to tell Joan of Arc and leave her out of leadership decisions, to which she famously responded: