Battle of Legnica, 1241: when the Mongols reached Europe

Q: When and where was the Battle of Legnica?

The battle was fought on 9 April 1241 near Legnica (Liegnitz) in Silesia, during the Mongol invasion of Europe.

By the numbers
Side	Strength	Losses
Mongol Empire	~3,000-8,000	Unknown
Poland and allies	~2,000-8,000	Army destroyed; Henry II killed

By the numbers

Side

Strength

Losses

Mongol Empire

~3,000-8,000

Unknown

Poland and allies

~2,000-8,000

Army destroyed; Henry II killed

Quick answer

The Mongols won a decisive victory at Legnica in Silesia² in April 1241, annihilating the assembled knights of Poland and their allies and killing their leader, Duke Henry II the Pious. It was the furthest west the Mongols ever won a major battle, before they abruptly turned back east.

In April 1241 a Mongol army swept into Silesia and met the assembled knights of Poland and their allies near Legnica. The Europeans were annihilated and their leader, Duke Henry II the Pious, was killed. It was the furthest west the Mongols would win a major battle, and then, almost inexplicably, they turned around and rode away.

The storm from the east

Legnica was part of the great Mongol invasion that shattered the armies of Kievan Rus and then split to strike central Europe. One wing swept through Poland, sacking Kraków¹, while the main force drove into Hungary.³ The Polish and Silesian nobility, with German knights and military orders², gathered under Duke Henry II the Pious to stop the northern thrust.

Black and white map of eastern Europe with lines showing Mongol invasion routes into Poland and Hungary — The Mongol campaign in Europe, 1236 to 1242, on a Hungarian map by the historian Henrik Marczali (1895): the routes split to strike Poland and Silesia in the north and Hungary in the south. Its figure of 500,000 horsemen reflects 19th century guesses and is far too high. Public domain

A clash of two ways of war

The battle pitted heavily armoured European knights against the fast, disciplined Mongol horse archers. The Mongols used the tactics that had carried them across Asia: showers of arrows, feigned retreats to draw the knights out of formation¹, and smoke or dust to sow confusion. The European charge was lured forward, surrounded, and cut to pieces.

Pen drawing of a crowded cavalry battle in two scenes on a manuscript page — The battle of Legnica in a drawing from the Hedwig manuscript of 1451 (University of Wrocław Library), a crowded clash of horsemen in which Duke Henry is killed. Public domain

Europe braced for the end, and the Mongols simply turned and rode east.

The death of Henry

Duke Henry was killed as his army disintegrated, and by tradition his head was paraded on a lance⁴ before the walls of Legnica. The defeat left central Europe seemingly open, with no field army able to face the invaders, and news of the disaster spread fear across the continent.

Medieval miniature of mounted warriors with a severed head on a spear riding up to a castle whose defenders shoot back — Mongol horsemen carry the head of Duke Henry on a lance before the castle of Legnica, a miniature from the Hedwig Codex of 1353 (J. Paul Getty Museum). Public domain

Why the Mongols left

Then the threat vanished. Within months the Mongols withdrew from central Europe, most likely because the Great Khan Ögedei had died⁵ far to the east and the leaders were drawn back to the succession. Legnica remained a byword for how close the Mongols came, and how narrowly Europe was spared.

Frequently asked questions

When and where was the Battle of Legnica?

The battle was fought on 9 April 1241 near Legnica⁶ (Liegnitz) in Silesia, during the Mongol invasion of Europe.

Who led the two sides?

The European army was led by Duke Henry II the Pious of Silesia. The Mongol force was commanded by generals of the western wing, including Orda and Baidar.

What happened to Henry the Pious?

Henry was killed when his army was destroyed. According to tradition the Mongols displayed his severed head on a spear before the town of Legnica.

Why did the Mongols withdraw after winning?

Soon after their victories in Poland and Hungary the Mongols left central Europe, most likely because the death of the Great Khan Ögedei recalled their leaders to the succession struggle in the east.

Was Legnica the furthest the Mongols reached in Europe?

Legnica was the westernmost major battle the Mongols won in Europe. Their raids reached a little further, but after 1242 they did not return in such force.

Sources and notes

Numbered notes in the text point to the works below.

Muzeum Historii Polski (Mediateka), “Najazdy mongolskie na Polskę” ↩ a b c

Encyclopaedia Britannica, “Battle of Legnica” ↩ a b

Peter Jackson, The Mongols and the West, 1221-1410 (Pearson Longman, 2005). ↩

Jan Długosz, Annales seu cronicae incliti Regni Poloniae (Roczniki czyli Kroniki sławnego Królestwa Polskiego), Book 7, year 1241: the Tatar invasion and the battle of Legnica. ↩

Encyclopaedia Britannica, “Batu” ↩

Jerzy Maroń, Legnica 1241 (Bellona (Historyczne Bitwy), 1996). ↩

Wikipedia, “Battle of Legnica”