25 October 1415. The monumental battle between Henry V and the French forces arrayed against him, slaying three French
dukes , the
constable of France, nine
counts , 90 lords and more than 5,000
knights . The battle crushed the French resistance to Henry’s renewed claim to the French throne, resulting in the Treaty of Troyes, 1420, in which Henry was betrothed to Catherine and thus their heir of France. It was this battle that Shakespeare immortalized in his "Saint Crispen’s Day" speech in Henry V.