Malvasia Malmsey was one of the three major wines exported from Greece in medieval times. (For other examples, see Rumney wine and Cretan wine). It is alleged that when Edward IV of England convicted his brother, George Plantagenet, 1st Duke of Clarence, of high treason, his private execution consisted of being "drowned in a butt of Malmsey wine," which is dramatized in Shakespeare's "Richard III". Both Monemvasia and Candia have lent their names to modern grape varieties. In Greece, there is a variety known as Monemvasia, evidently named after the port, though now grown primarily in the Cyclades. In western Europe,
George Plantagenet, 1st Duke of Clarence ultimately failed and Warwick was killed in battle of Barnet April 1471. The re-instated King Edward IV restored his brother Clarence to royal favour by making him Great Chamberlain of England. As his father-in-law had died, Clarence became "jure uxoris" Earl of Warwick, but did not inherit the entire Warwick estate as his younger brother, Richard, Duke of Gloucester, had married () Anne Neville, who had been widowed in 1471. Edward intervened and eventually divided the estates between his brothers. Clarence was created first Earl of Warwick on 25 March 1472. In 1475 Clarence's wife Isabel gave birth to a