The Princes in the Tower refers to the apparent murder in England in the 1480s of the deposed King Edward V of England and Richard of Shrewsbury, Duke of York. These two brothers were the only sons of King Edward IV and Elizabeth Woodville surviving at the time of their father's death in 1483. When they were 12 and 9 years old, respectively, they were lodged in the Tower of London by their paternal uncle and all-powerful regent the Duke of Gloucester. This was supposedly in preparation for Edward V's forthcoming coronation. However, before the young king could be crowned, he and his brother were declared illegitimate. Gloucester ascended the throne as Richard III. It is unclear what happened to the boys after the last recorded sighting of them in the tower. It is generally assumed that they were murdered; a common hypothesis is that they were killed by Richard in an attempt to secure his hold on the throne. Their deaths may have occurred sometime in 1483, but apart from their disappearance, the only evidence is circumstantial. As a result, several other hypotheses about their fates have been proposed, including the suggestion that they were murdered by their maternal uncle the Duke of Buckingham or brother-in-law King Henry VII, among others. It has also been suggested that one or both princes may have escaped assassination. In 1487, Lambert Simnel initially claimed to be the Duke of York, but later claimed to be York's cousin the Earl of Warwick. From 1491 until his capture in 1497, Perkin Warbeck claimed to be the Duke of York, having supposedly escaped to Flanders. Warbeck's claim was supported by some contemporaries, including York's aunt the Duchess of Burgundy. In 1674, workmen at the tower dug up from under the staircase a wooden box containing two small human skeletons. The bones were widely accepted at the time as those of the princes, but this has not been proven and is far from certain. King Charles II had the bones buried in Westminster Abbey, where they remain.