France. Still only 15, he lacked the power or backing to defeat John, who fomented revolt in Paris. In retaliation against the actions of John the Fearless, Charles of Orléans denied funds from the royal treasury to all members of the royal family. In 1414, instead of allowing her son, then 17, to lead, Isabeau allied herself with Charles of Orléans. The Dauphin, in return, changed allegiance and joined John, which Isabeau considered unwise and dangerous. The result was continued civil war in Paris. Parisian commoners joined forces with John the Fearless in the Cabochien Revolt, and at the height of the revolt, a group of butchers entered Isabeau's home in search of traitors, arresting and taking away up to 15 of her ladies-in-waiting. In his chronicles, Pintoin wrote that Isabeau was firmly allied with the Orléanists and the 60,000 Armagnacs who invaded Paris and Picardy. King Henry V of England took advantage of the internal strife in France, invading the northwest coast, and in 1415, he delivered a crushing defeat to the French at Agincourt. Nearly an entire generation of military leaders died or were taken prisoner in a single day. John, still feuding with the royal family and the Armagnacs, remained neutral as Henry V went on to conquer towns in northern France. In December 1415, Dauphin Louis died suddenly at age 18 of illness, leaving Isabeau's political status unclear. Her 17-year-old fourth-born son, John of Touraine, now the Dauphin, had been raised since childhood in the household of Duke William II of Bavaria in Hainaut. Married to Countess Jacqueline of Hainaut, Dauphin John was a Burgundian sympathizer. William of Bavaria refused to send him to Paris during a period of upheaval as Burgundians plundered the city and Parisians revolted against another wave of tax increases initiated by Count Bernard VII of Armagnac; in a period of lucidity, Charles had raised the Count to be the Constable of France. Isabeau attempted to intervene by arranging a meeting with Jacqueline in 1416, but Armagnac refused to allow Isabeau to reconcile with the House of Burgundy, while William II continued to prevent the young Dauphin from entering Paris. In 1417, Henry V invaded Normandy with 40,000 men. Later that year, in April, Dauphin John died and another shift in power occurred when Isabeau's sixth and last son, Charles, age 14, became Dauphin. He was betrothed to Armagnac's daughter Marie of