Edward's reign was interrupted by a revolt in 1470–1471, led by Warwick and backed by the French, which briefly re-installed Henry VI as king. Edward regained the throne after finding refuge and funds in Flanders, winning the Battle of Barnet and entering London. He quickly consolidated his position by defeating the Lancastrians at Tewkesbury, following which Henry was found dead in the Tower of London.

Edward reigned twelve more years. In 1475 he invaded France, but the campaign was short-lived and resulted in the Treaty of Picquigny. Eight years later, he died suddenly. Since his son and heir apparent, Edward, was still a minor, he named his brother, Richard, Duke of Gloucester, as Lord Protector. After Edward IV's death, his children were declared illegitimate by Gloucester, who then ascended the throne as Richard III (Wikipedia).

 Edward IV BNS References