date unknown Chimalpopoca, Aztec ruler of Tenochtitlán (d. 1427) Tlacaelel, Aztec nobleman (d. 1487) Paolo dal Pozzo Toscanelli, Italian mathematician (d. 1482) John de Ros, 7th Baron Ros, English noble and soldier (d. 1421) Paolo Uccello, Florentine painter (d. 1475) Deaths January 11 – Skirgaila, Grand Duke of Lithuania February 18 – Enguerrand VII, Lord of Coucy (b. 1340) March 14 – Henry VIII the Sparrow, Duke of Żagań–Głogów (b. c. 1357) April 25 – Thomas Holland, 2nd Earl of Kent (b. 1350) June 3 – William Montacute, 2nd Earl of Salisbury, English military leader (b. 1328) June 16 – Philip of Artois, Count of Eu, French soldier (b. 1358) July 15 – Catherine of Henneberg, German ruler (b. c. 1334) September 2 – Francesco Landini, Italian composer September 8 – Thomas of Woodstock, 1st Duke of Gloucester, son of King Edward III of England (b. 1355) September 15 – Adam Easton, English cardinal September 21 – Richard FitzAlan, 11th Earl of Arundel, English military leader (executed) (b. 1346) October 6 – Vuk Branković, Serbian lord (b. 1345) References