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 his brother from the Tower before it was too late", but that, when the Duke of Buckingham became involved, it shifted to support of Henry Tudor because "Buckingham almost certainly knew that the princes in the Tower were dead." Alison Weir proposes 3 September 1483 as a potential date; however, Weir's work has been criticised for "arriving at a conclusion that depends more on her own imagination than on the uncertain evidence she has so misleadingly presented." Sir Clements Markham suggests the princes may have been alive as late as July 1484, pointing to the regulations issued by Richard III's