The Battle of Agincourt was an English victory against a much larger French army in the Hundred Years' War. The battle occurred on Friday 25 October 1415 (Saint Crispin's Day), in northern France. Henry V's victory started a new period in the war, in which Henry married the French King's daughter and his son was made heir to the throne of France, but his achievement was squandered by his heirs. The French king of the time was Charles VI; ho...