Edward Plantagenet, 17th Earl of Warwick (25 February 1475 – 28 November 1499) was the son of George Plantagenet, 1st Duke of Clarence, and a potential claimant to the English throne during the reigns of both Richard III (1483–1485) and his successor, Henry VII (1485–1509). He was also a younger brother of Margaret Pole, 8th Countess of Salisbury.

In 1480, Warwick was made a ward of King Edward IV's stepson, Thomas Grey, 1st Marquess of Dorset, who as his guardian had the power to decide whom he would marry. Clements Markham, writing in 1906, claimed that Richard III had "liberated" Warwick from the Tower of London, where Dorset had placed him; however, there are no contemporary sources for this claim, although Dorset was Constable of the Tower. Dominic Mancini wrote that Richard, on becoming king, "gave orders that the son of the duke of Clarence, his other brother, then a boy of ten years old, should come to the city: and commanded that the lad should be kept in confinement in the household of his wife".

After King Richard's death in 1485, Warwick, only ten years old, was kept as prisoner in the Tower of London by Henry VII. His claim, albeit tarnished, remained a potential threat to Henry, particularly after the appearance of the pretender Lambert Simnel in 1487. In 1490, he was confirmed in his title of Earl of Warwick despite his father's attainder (his claim to the earldom of Warwick being through his mother). But he remained a prisoner until 1499, when he became involved (willingly or unwillingly) in a plot to escape with Perkin Warbeck.

On 21 November 1499, Warwick appeared at Westminster for a trial before his peers, presided over by John de Vere, Earl of Oxford. He pleaded guilty.[citation needed] A week later, Warwick was beheaded for treason on Tower Hill. Henry VII paid for his body and head to be taken to Bisham Abbey in Berkshire for burial.[6] It was thought at the time that Warwick was executed in response to pressure from Ferdinand II of Aragon and Isabella I of Castile, whose daughter, Catherine of Aragon, was to marry Henry's heir, Arthur. Catherine was said to feel very guilty about Warwick's death, and that her trials in later life were punishment for it.[

More information on the Wikipedia page [1].

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