High Quality Content by WIKIPEDIA articles! John Dudley, 2nd Earl of Warwick, KG, KB (c. 1527 – 21 October 1554) was an English nobleman and the heir of John Dudley, 1st Duke of Northumberland, leading minister and de facto ruler under Edward VI of England from 1550–1553. As his father`s career progressed, John Dudley respectively assumed his father`s former titles, Viscount Lisle and Earl of Warwick. Interested in the arts and sciences, he was the dedicatee of several books by eminent scholars of the time. His marriage to the former Protector Somerset`s eldest daughter, in the presence of the King and a magnificent setting, was a gesture of reconciliation between the young couple`s fathers. However, their struggle for power flared up again and ended with the Duke of Somerset`s execution. In July 1553, after King Edward`s death, Dudley was one of the signatories of the letters patent that set Lady Jane Grey on the Throne of England, and took arms against Mary Tudor, alongside his father. The short campaign did not see any military engagements and ended as the Duke of Northumberland and his son were taken prisoners at Cambridge. John Dudley the younger was condemned to death yet reprieved. He died shortly after his release from the Tower of London.