What was the biggest medieval battle?
The Battle of Grunwald in 1410, also called Tannenberg, was among the largest battles of medieval Europe, with tens of thousands of soldiers on each side. Of the six great medieval battles in this guide it had the largest armies, about 60,000 men in all. The Teutonic Order was shattered there in an afternoon.
The Middle Ages were shaped by the mounted knight, the castle and the longbow. From the fields of Poland to the mud of northern France, these battles remade kingdoms and ended dynasties.
Tours, 732. Charles Martel halts the Umayyad advance.
Hastings, 1066. The day England changed hands.

Hattin, 1187. Saladin's masterpiece opens the road to Jerusalem.
Crécy, 1346. The longbow breaks the French chivalry.
Grunwald, 1410. The Teutonic Order shattered in an afternoon.

Agincourt, 1415. Henry V's archers humble the flower of French chivalry.
See these battles set beside every other era in Battles That Changed the World.
What made the Middle Ages a distinct age of war
Medieval war was dominated by the mounted knight, the castle and the decisive clash of shield walls and cavalry charges. From Hastings to Grunwald, a single afternoon could make or unmake a kingdom, and new weapons like the longbow slowly began to tip the balance away from the armoured horseman. Ground mattered as much as weapons: in 1242 Alexander Nevsky chose to meet the Livonian knights on the frozen Lake Peipus, where their heavy horse would struggle. In 1485 Richard III became the last king of England to die in battle, cut down at Bosworth Field.

Every battle above has its own full account. See where they sit in the longer story of war in the greatest battles of all time.
