Died in 1415

Apr 15 Manuel Chrysoloras a pioneer in the introduction of Greek literature to Western Europe during the late middle ages.
Jul 6 Jan Hus a Czech priest, philosopher, reformer and master at Charles University in Prague. After John Wycliffe, the theorist of ecclesiastical Reformation, Hus is considered the first Church reformer, as he lived before Luther, Calvin and Zwingli
Jul 19 Philippa of Lancaster Queen of Portugal from 1387 until 1415 as the wife of King John Born into the royal family of England, her marriage secured the Anglo-Portuguese Alliance and produced several children who became known as the "Illustrious Generation" in Portugal.
Aug 5 Richard of Conisburgh 3rd Earl of Cambridge the second son of Edmund of Langley, 1st Duke of York, and Isabella of Castile. At the age of forty he was beheaded for his part in the Southampton Plot, a conspiracy against King Henry He was the father of Richard Plantagenet, 3rd Duke of York, and the grandfather of King Edward IV and King Richard III
Sep 14 Michael de la Pole 2nd Earl of Suffolk an English nobleman, supported Henry IV against Richard He died during the Siege of Harfleur in 1415. He was a son of Michael de la Pole, 1st Earl of Suffolk and Katherine Wingfield, daughter of Sir John Wingfield
Oct 13 Thomas FitzAlan 12th Earl of Arundel an English nobleman, one of the principals of the deposition of Richard II, and a major figure during the reign of Henry IV.
Oct 25 Waleran III Count of Ligny a French nobleman and soldier.
Oct 25 Michael de la Pole 3rd Earl of Suffolk an English nobleman, the eldest son of Michael de la Pole, 2nd Earl of Suffolk and Katherine de Stafford.
Oct 25 Anthony Duke of Brabant Duke of Brabant, Lothier and Limburg.
Oct 25 Philip II Count of Nevers the youngest son of Philip the Bold and Margaret III of Flanders.
Oct 25 Edward III Duke of Bar made Marquis of Pont-à-Mousson by his father Robert I, Duke of Bar in 1399 and held it until his death. He then became heir to the Duchy of Bar following the death of his elder brothers Henry and Philippe at or soon after the Battle of Nicopolis in 1396
Oct 25 Jean I Duke of Alençon a French nobleman, killed at the Battle of Agincourt.
Oct 25 Edward of Norwich 2nd Duke of York the eldest son of Edmund of Langley, 1st Duke of York, by his first wife Isabella of Castile, and the grandson of Edward III. He held significant appointments during the reigns of three monarchs Richard II, Henry IV, and Henry V, and was slain at the Battle of Agincourt in 1415. He translated a hunting treatise, The Master of Game
Dec 18 Louis Dauphin of France Duke of Guyenne a younger son of Charles VI of France and Isabeau of Bavaria. He was the third child of his parents to hold the title Dauphin of France, holding it from the death of his older brother in 1401, when he was likewise made Duke of Guyenne