Dashed left edge = started before April 1241 ·
Dashed right edge = ongoing beyond April 1241
Events in April 1241 3
1196 – 1241Henry II the Pious (1196-1241)Died 9 April 1241, aged 45Henry II the Pious, Duke of Silesia and High Duke of Poland, was killed leading Polish forces against the invading Mongols at the Battle of Legnica. His death left Silesia and the Polish duchies without unified leadership against further Mongol incursions. He was buried at the Church of St. Vincent in Breslau (Wroclaw).
1241Battle of LegnicaMongol forces crush a Polish-led army in SilesiaA Mongol army under Baidar and Kadan defeated a coalition of Polish, German, and Teutonic Order forces near Legnica in Silesia. Duke Henry II the Pious of Silesia was killed in the rout. The victory opened Poland to further Mongol raiding before the army turned south toward Hungary.
1241Battle of MohiMongol army destroys the Hungarian royal host at the Sajo RiverSubutai and Batu Khan's forces crushed the army of King Bela IV of Hungary at the Sajo River near Mohi, inflicting catastrophic losses on the Hungarian nobility. Bela IV fled westward, and the Mongols subsequently overran and devastated much of the Hungarian plain. The defeat remains one of the deadliest in medieval Hungarian history.