Henry V dies in 1422. Henry VI would prove to be ill-suited to leadership. In 1455, he marries Margaret of Anjou, niece of the King of France in exchange for the strategically important lands of Maine and Anjou. Richard of York was stripped of his prestigious command in France and sent to govern the relatively distant Lordship of Ireland with a ten-year term of office, where he could not interfere with affairs at court. Margaret, along with her close friendship with Somerset, would wield almost complete control over the pliable king Henry. On 15 April 1450, the English suffered a major reversal in France at Formigny, which paved the way for the French reconquest of Normandy. That same Year, there was a violent popular uprising in Kent, which is often seen as a precursor to the Wars of the Roses. Henry displayed several symptoms of mental illness, possibly inherited from his maternal grandfather, Charles VI of France. His near-total lack of leadership in military matters had left the English forces in France scattered and weak.