Anne Neville the country in March 1471 and quickly captured London and the person of Henry VI. The mentally troubled Henry VI was taken by Edward IV as a prisoner to the Battle of Barnet, where Warwick was killed on 14 April 1471. Edward IV then incarcerated Henry VI in the Tower of London. Following the decisive Yorkist victory at the Battle of Tewkesbury on 4 May, Henry was reported to have died of "pure displeasure and melancholy," although "The Great Chronicle of London" reported that Richard, Duke of Gloucester, was responsible for his death. As Constable of England, he probably delivered
1471 Papal conclave by voting for others until the morning of August 9th, when along with d'Estouteville and Barbo they changed their votes to della Rovere in the "accessus", giving him a total of 13 votes. The cardinals voting for della Rovere in the scrutiny were: Monferrato, Zeno, Michiel, Agnifilo, Roverella,Forteguerri, Bessarion, Calandrini, and Orsini. Contrary to the perennial tradition, the five remaining cardinals did not change their votes to della Rovere in the "accessus" to make the election "unanimous". 1471 Papal conclave The papal conclave of 1471 (August 6–9) elected Pope Sixtus IV following the death of Pope Paul II. With the