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
Wars of the Roses again won complete victories at Barnet (14 April 1471), where Warwick was killed, and Tewkesbury (4 May 1471) where the Lancastrian heir, Edward of Westminster, Prince of Wales was killed, or perhaps executed after the battle. Queen Margaret was escorted to London as a prisoner and Henry was murdered in the Tower of London several days later, ending the direct Lancastrian line of succession. A period of comparative peace followed, ending with the unexpected death of King Edward in 1483. His surviving brother, Richard, Duke of Gloucester, first moved to prevent the unpopular Woodville family of Edward's widow from participating