By nightfall, the English had lost perhaps 400 men. The French lost over 6,000, including three dukes and countless nobles. Agincourt became the defining victory of the Hundred Years’ War. After Agincourt, Henry did not rest. Between 1417 and 1419, he methodically conquered Normandy—town by town, castle by castle. He learned to conduct siege warfare as deftly as he fought open battles. Rouen fell after a brutal six-month siege, where Henry famously refused to let the starving French citizens leave the city, forcing them to eat horses, dogs, and eventually grass before surrender.
He was intercepted near the village of Azincourt. Henry V
Worse, his nine-month-old son, Henry VI, inherited both crowns. That infant king would grow up to lose everything his father had won, plunging England into the Wars of the Roses. As the saying goes: Henry V won a kingdom but lived just long enough to see his son lose it. Why does Henry V still matter? Because he represents the myth of perfect leadership: the man who unites a divided nation, turns weakness into strength, and achieves the impossible through sheer force of will. Shakespeare captured this perfectly in the St. Crispin’s Day speech, turning a brutal massacre into a stirring call to brotherhood: By nightfall, the English had lost perhaps 400 men
The real Henry V was less poetic but no less formidable. He was a master of propaganda, a brilliant logistician, and a king who understood that in the Middle Ages, nothing united a realm like a common enemy. He died too young to fail. After Agincourt, Henry did not rest
What followed was not a battle but a slaughter. Arrows flew at a rate of ten per second, turning the French cavalry into pincushions. Knights in full plate armor drowned in the mud, suffocated under the weight of fallen comrades, or were dispatched by English archers wielding lead mallets. Henry, fighting in the thick of the melee, took a blow to the helmet that nearly felled him—but he stood his ground.
Henry’s claim to the French throne was tenuous at best, based on distant ancestry from Edward III. But in an age where God’s favor was proven on the battlefield, Henry believed that a successful invasion would silence his domestic critics and crown him the rightful King of France. On August 11, 1415, Henry sailed for France. After the siege of Harfleur—a bloody affair that cost him thousands of men to dysentery—he decided on a desperate gamble. Rather than sail home in disgrace, he marched his exhausted, starving army 150 miles across northern France toward the safety of Calais.