 Henry V of England took advantage of these internal divisions when he invaded the kingdom in 1415, winning a dramatic victory at Agincourt on 25 October and subsequently capturing many northern French towns during a later campaign in 1417.In 1418 Paris was taken by the Burgundians, who massacred the Count of Armagnac and about 2,500 of his followers.The future French king, Charles VII, assumed the title of Dauphin—the heir to the throne—at the age of fourteen, after all four of his older brothers had died in succession.