Died in 1453

Feb 28 Isabella Duchess of Lorraine suo jure Duchess of Lorraine, from 25 January 1431 to her death in 1453. She was the first wife of Duke René of Anjou, King of Naples, and the mother of his children, which included Margaret of Anjou, Queen consort of England as the wife of Henry VI
May 9 Matthias of Trakai a Lithuanian Roman Catholic clergyman, the first Bishop of Samogitia from its establishment in 1417 until 1422 and the fifth Bishop of Vilnius from 4 May 1422 until 9 May 1453 and an ex officio member of the Council of Lords.
May 29 Ulubatlı Hasan a Timarli Sipâhî in the service of Sultan Mehmed II of the Ottoman Empire who achieved legendary status as a heroic Turkish martyr at the successful Siege of Constantinople.
May 29 Constantine XI Palaiologos the last reigning Byzantine Emperor, reigning as a member of the Palaiologos dynasty from 1449 to his death in battle at the fall of Constantinople. Following his death, he became a legendary figure in Greek folklore as the "Marble Emperor" who would awaken and recover the Empire and Constantinople from the Ottomans. His death marked the end of the Roman Empire, which had continued in the East for 977 years after the fall of the Western Roman Empire
Jun 1 Çandarlı Halil Pasha the Younger a highly influential Ottoman grand vizier under the sultans Murad II and, for the first few years of his reign, Mehmed He was a member of the Çandarlı family, a highly influential political family in the Ottoman Empire. His grandfather and namesake, Çandarlı Kara Halil Hayreddin Pasha , also earlier served as grand vizier, under Murad I
Jul 17 John Talbot 1st Earl of Shrewsbury an important English military commander during the Hundred Years' War, as well as the only Lancastrian Constable of France.
Jul 20 Enguerrand de Monstrelet a French chronicler. He was born in Picardy, most likely into a family of the minor nobility
Sep 27 Sabbatius of Solovki one of the founders of the Solovetsky Monastery.
Dec 24 John Dunstaple an English composer of polyphonic music of the late medieval era and early Renaissance periods. He was one of the most famous composers active in the early 15th century, a near-contemporary of Leonel Power, and was widely influential, not only in England but on the continent, especially in the developing style of the Burgundian School