» For the controversial book by Gavin Menzies, see: . Year 1421 (MCDXXI) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. Events of 1421 March 21 – Battle of Baugé: A small French force surprises and defeats a smaller English force under Thomas, Duke of Clarence, a brother of Henry V of England, in Normandy. May 26 – Mehmed I, Sultan of the Ottoman Empire, dies and's succeeded by his son Murad II. November 17 – 19 &n… (More on 1421)