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 goal. This theory formed the basis of Sharon Penman's historical novel, "The Sunne in Splendour". Henry VII (Henry Tudor), following his seizure of the crown, executed some of the rival claimants to the throne. One who was either executed or died in captivity was John of Gloucester, illegitimate son of Richard III. Henry was out of the country between the princes' disappearance and August 1485, thus his only opportunity to murder them would have been after his accession in 1485. Pollard suggests Henry (or those acting on his orders) is "the only plausible alternative to Richard III." The year after