Hundred Years' War (1415–53)
The Lancastrian War was the third and final phase of the Anglo-French Hundred Years' War. It lasted from 1415, when King Henry V of England invaded Normandy, to 1453, when the English lost Bordeaux. It followed a long period of peace from the end of the Caroline War in 1389. The phase was named after the House of Lancaster, the ruling house of the Kingdom of England, to which Henry V belonged.
Charles VI of France
Charles VI's reign was marked by the continuing conflict with the English, known as the Hundred Years' War. An early attempt at peace occurred in 1396 when Charles' daughter, the almost seven-year-old Isabella of Valois, married the 29-year-old Richard II of England. By 1415, however, the feud between the French royal family and the House of Burgundy led to chaos and anarchy throughout France that Henry V of England was eager to take advantage of. Henry led an invasion that culminated in the defeat of the French army at the Battle of Agincourt in October.