In 1789, workmen carrying out repairs in St. George's Chapel, Windsor accidentally broke into the vault of Edward IV and Queen Elizabeth Woodville, they discovered what appeared to be a small adjoining vault, which was found to contain the coffins of two unidentified children. No examination was carried out and the tomb was resealed. These coffins were assumed to be the bodies of George, Duke of Bedford, 3rd son of Edward IV who died aged around 2 in 1479, and Mary, fifth daughter of Edward IV, who died aged 14 in 1482. Both were known to have been buried in Windsor. A slab commemorating George and Mary was put in the paving above the vault.
During the later excavation for the royal tomb house of King George III in 1810-13, two lead coffins were discovered which were clearly labelled as George Mary Plantagenet, these were moved into the adjoining vault of Edward IV, but no attempt was made to identify the two lead coffins already in the vault. In the written account of Mary's funeral, it states that she was "buried by my Lorde George, her brother". 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 old boiler and also to add a new repository for the remains of future Deans and Canons of Windsor. A request was put 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. Royal consent would be necessary to open any royal tomb. The 2012 Leicester archaeological dig has prompted renewed interest in re-excavating the skeletons of the "two princes", however, Queen Elizabeth II has not granted the approval required for any such testing. The mystery of who was buried in a place of honour beside Edwaard IV remains unsolved.
The Tower of London