Queen Mother: Lying in State The Vigil of the Princes

Each corner of the platform is guarded around the clock by units from the Sovereign s Bodyguard, Foot Guards or the Household Cavalry Mounted Regiment. It is the custom for male members of the Royal family to mount guard during the lyinginstate, in what is known as the Vigil of the Princes. The Prince of Wales, Duke of York, Earl of Wessex and Viscount Linley stand vigil on the eve of their grandmother s funeral