 At a meeting between the Dauphin Charles and John the Fearless, the Duke of Burgundy was assassinated by the Dauphin's followers, forcing the duke's son and successor into an alliance with the English.Henry V made a formal alliance with Philip the Good, duke of Burgundy, who had taken Paris, after the Armagnac assassination of John of Burgundy in 1419.They forced the mad king Charles VI to sign the Treaty of Troyes, by which Henry would marry Charles' daughter Catherine of Valois and Henry and his heirs would inherit the throne of France, disinheriting the Dauphin Charles.