Died in 1250

Feb 2 Eric XI of Sweden king of Sweden in 1222–1229 and 1234–1250.
Feb 8 William II Longespée the son of William Longespée, 3rd Earl of Salisbury, and Ela, 3rd Countess of Salisbury. His death became of significant importance to the English psyche, having died as a martyr due to the purported mistakes of the French at the Battle of Mansurah, near Al-Mansurah in Egypt
Feb 8 Robert I Count of Artois the first Count of Artois, the fifth son of Louis VIII of France and Blanche of Castile.
Apr 6 Hugh XI of Lusignan de Lusignan, Hugh VI of La Marche or Hugh II of Angoulême or Hugues XI & VI & II de Lusignan. He succeeded his mother Isabelle of Angoulême, former queen of England, as Count of Angoulême in 1246. He likewise succeeded his father Hugh X as Count of La Marche in 1249. Hugh XI de Lusignan was uterine half-brother of Henry III of England
May 27 Raniero Capocci an Italian cardinal and military leader, a fierce adversary of emperor Frederick II.
Jun 7 Vitslav I Prince of Rügen a prince of Rügen.
Jun 11 Alice of Schaerbeek O.Cist. was a Cistercian laysister who is venerated as the patron saint of the blind and paralyzed
Jul 6 Peter I Duke of Brittany duke of Brittany jure uxoris from 1213 to 1221, then regent of the duchy from 1221 to 1237 as well as 1st Earl of Richmond from 1219 to 1235.
Aug 9 Eric IV of Denmark king of Denmark from 1241 until his death in 1250. He was the son of King Valdemar II by his wife, Berengaria of Portugal, and brother of King Abel and King Christopher I
Oct 4 Herman VI Margrave of Baden Margrave of Baden and titular margrave of Verona from 1243 until his death.
Dec 13 Frederick II Holy Roman Emperor one of the most powerful Holy Roman Emperors of the Middle Ages and head of the House of Hohenstaufen. His political and cultural ambitions, based in Sicily and stretching through Italy to Germany, and even to Jerusalem, were enormous; however, his enemies, especially the popes, prevailed, and his dynasty collapsed soon after his death. Historians have searched for superlatives to describe him, as in the case of Professor Donald Detwiler, who wrote: