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 or heavily influenced by John Morton, Archbishop of Canterbury, in order to incriminate Richard III. Robert Fabyan's "Chronicles of London", compiled around 30 years after the princes' disappearance, names Richard as murderer. Thomas More (a Tudor loyalist who had grown up in the household of John Morton, an avowed foe of Richard III), wrote The "History of King Richard III", c.1513. This identified Sir James Tyrrell as the murderer, acting on Richard's orders. Tyrrell was the loyal servant of Richard III who is said to have confessed to the murder of the princes before his execution for treason in 1502.