Famous Deaths Happened In 1421

Mar 22 Thomas of Lancaster, 1st Duke of Clarence, second son of Henry IV of England (killed in battle) (b. 1388) died in the year 1421.  

May 26 In the year 1421 mohammed I, sultan of Turkey (1413-21), dies  

Jun 21 Jean Le Maingre, Marshal of France (b. 1366) died on this day in history.  

Jul 25 Henry Percy, 3rd Earl of Northumberland, English politician (d. 1461) was born on this day in history.  

Dec 06 In the year 1421 birth of henry VI, king of England (1422-61, 1470-71)