Princes in the Tower old boiler and also to add a new repository for the remains of future Deans and Canons of Windsor. A request was forwarded to the Dean and Canons of Windsor to consider a possible examination of the two vaults either by fibre-optic camera or, if possible, a reexamination of the two unidentified lead coffins in the tomb also housing the lead coffins of two of Edward IV's children that were discovered during the building of the Royal Tomb for King George III (1810–13) and placed in the adjoining vault at that time. Royal consent would be necessary to open any
Princes in the Tower to speculate when or by whose hand." During the reign of Henry VII, two individuals claimed to be Richard, Duke of York, who had somehow escaped death. Lambert Simnel initially claimed to be Richard, before changing his story and claiming to be Edward Plantagenet, 17th Earl of Warwick. Perkin Warbeck later claimed to be Richard, appearing in Ireland and calling himself king Richard IV. Margaret of York, Duchess of Burgundy, formally recognised Warbeck as Richard. Margaret, Richard III's sister, an unrelenting opponent of Henry VII, had previously recognised Simnel as Warwick. Warbeck was also accepted as Richard by James IV