Mongol armies crush Poland and Hungary at Legnica and Mohi
Genghis Khan's grandsons bring Central Europe to the edge of catastrophe, then turn back
Quick facts
- Battles
- Legnica (9 Apr 1241), Mohi (10-11 Apr 1241)
- Mongol commanders
- Batu Khan, Subutai
- Duke killed
- Henry the Pious of Silesia
- End of invasion
- Death of Ogedei Khan, December 1241
What happened
In 1241, Mongol forces under Batu Khan and the general Subutai launched a coordinated invasion of Central Europe on multiple fronts. One army crushed a combined Polish, German, and Teutonic Knight force under Duke Henry the Pious at the Battle of Legnica on 9 April, killing Henry and, according to tradition, filling nine sacks with the ears of the dead. Two days later, on 10-11 April, the main Mongol force routed the Hungarian army of King Bela IV at the Battle of Mohi on the Sajo River, using a pontoon bridge crossing and catapult bombardment to outflank the Hungarians. Buda, Pest, and Gran fell over the following months, and Mongol forces pushed as far west as Wiener Neustadt in Austria before pausing. The invasion ended abruptly when news arrived that Ogedei Khan had died in Mongolia in December 1241, recalling the senior commanders home to help choose his successor.
Why it matters
The scale of the defeats at Legnica and Mohi, which killed roughly half of Hungary's population according to some estimates, showed Central Europe had no military answer to Mongol tactics, and only the accident of Ogedei's death, not any European victory, ended the invasion before it reached further west.
How we know
The campaign is documented in Mongol, Hungarian, Polish, and German chronicles, and the death of Ogedei Khan as the actual cause of the withdrawal, rather than any battlefield reversal, is corroborated across multiple independent accounts.
Sources
- World History Encyclopedia. The Mongol Invasion of Europe · Reputable sourceworldhistory.org · The domain "worldhistory.org" is on our Reputable source registry. · Link is live and its text matches the event's key terms (Jul 2026)
- World History Encyclopedia. The Mongol Invasion of Europe · Reputable sourceworldhistory.org · The domain "worldhistory.org" is on our Reputable source registry. · Link is live and its text matches the event's key terms (Jul 2026)
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