Princes in the Tower of 14; both had predeceased the King. However, two lead coffins clearly labelled as George Plantagenet and Mary Plantagenet were subsequently discovered elsewhere in the Chapel (during the excavation for the royal tomb house for King George III under the Wolsey tomb-house in 1810–13), and were moved into the adjoining vault of Edward IV's, but at the time no effort was made to identify the two lead coffins already in Edward IV's vault. In the late 1990s, work was being carried out near and around Edward IV's tomb in St George's Chapel; the floor area was excavated to replace an
Princes in the Tower Richard took the throne for himself and the boys disappeared. It is unclear what happened to the boys after they disappeared 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 some time 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 Henry Stafford, 2nd Duke of Buckingham or Henry VII,