Died in 1431

Jan 25 Charles II Duke of Lorraine the Duke of Lorraine from 1390 to his death and Constable of France from 1418 to 1425. Charles was the elder son of John I, Duke of Lorraine, and Sophie, daughter of Eberhard II, Count of Württemberg
Feb 20 Pope Martin V Pope from 14 November 1417 to his death in 1431. His election effectively ended the Western Schism
Apr 1 Nuno Álvares Pereira Dom Nuno Álvares Pereira, Carm. also spelled Nun'Álvares Pereira, was a Portuguese general of great success who had a decisive role in the 1383-1385 Crisis that assured Portugal's independence from Castile. He later became a mystic, was beatified by Pope Benedict XV in 1918 and was canonised by Pope Benedict XVI in 2009
May 6 Bolesław I Duke of Cieszyn a Duke of half of Bytom and Siewierz from 1405, Duke of Cieszyn and half of both Głogów and Ścinawa from 1410, and Duke of Toszek and Strzelin during 1410–1414.
May 30 Joan of Arc considered a heroine of France and a Roman Catholic saint. She was born to a peasant family at Domrémy in north-east France. Joan said she received visions of the Archangel Michael, Saint Margaret and Saint Catherine instructing her to support Charles VII and recover France from English domination late in the Hundred Years' War. The uncrowned King Charles VII sent Joan to the siege of Orléans as part of a relief mission. She gained prominence after the siege was lifted in only nine days. Several additional swift victories led to Charles VII's coronation at Reims. On 23 May 1430, she was captured at Compiègne by the allied English-Burgundian faction. She was later handed over to the English, and then put on trial by the pro-English Bishop of Beauvais Pierre Cauchon on a variety of charges. After Cauchon declared her guilty she was burned at the stake on 30 May 1431, dying at about nineteen years of age
Jul 3 Violant of Bar queen of the medieval Iberian kingdom of Aragon.
Oct 2 Thomas Beaufort Count of Perche a member of the Beaufort family and an English commander during the Hundred Years' War.
Dec 8 Hedwig Jagiellon (1408–1431) a Polish and Lithuanian princess, and a member of the Jagiellon dynasty. For most of her life she, as the only child of Wladyslaw Jagiello, was considered to be heiress of the Polish and Lithuanian thrones. After the birth of Jagiello's sons in 1424 and 1427, Hedwig had some support for her claims to the throne. She died in 1431 amidst rumors that she was poisoned by her stepmother Sophia of Halshany