Bonne of Artois and Margaret III, Countess of Flanders. Philip was killed at the Battle of Agincourt in 1415, against the English king Henry V, who won the battle against Charles d'Albret and Charles VI of France. Their eldest son Charles succeeded as Count of Nevers. However, due to the child's minority, Bonne acted as regent from 1415 until 1424. She succeeded her aunt Jeanne d'Artois as Mademoiselle de Dreux and as Dame de Houdain. After Philip's death, Bonne married his nephew Philip the Good, Duke of Burgundy, on 30 November 1424 at Moulins-les-Engelbert. His first marriage to Michelle of Valois had produced
Battle of Agincourt had originally drawn up a battle plan that had archers and crossbowmen in front of their men-at-arms, with a cavalry force at the rear specifically designed to "fall upon the archers, and use their force to break them," but in the event, the French archers and crossbowmen were deployed "behind" and to the sides of the men-at-arms (where they seem to have played almost no part, except possibly for an initial volley of arrows at the start of the battle). The cavalry force, which could have devastated the English line if it had attacked while they moved their stakes, charged