Edward fled to Flanders, where he gathered support and invaded England in March 1471; after victories at the battles of Barnet and Tewkesbury, he resumed the throne. Shortly afterwards, Henry VI was found dead in the Tower of London. Despite a continuing threat from Henry Tudor, later Henry VII, the last Lancastrian claimant, Edward reigned in relative peace for the next twelve years. When he died suddenly in April 1483, Edward IV was succeeded by his minor son Edward V, but Edward IV's brother Richard III soon seized the throne.