Admiral David Hallifax served as governor and constable at which British royal residence?
David Hallifax: Admiral Sir David John Hallifax, {'1': ", '2': ", '3': ", '4': "} (3 September 1927 – 23 August 1992) was a senior Royal Navy officer who was Constable and Governor of Windsor Castle from 1988 until 1992. Windsor Castle: Windsor Castle is a royal residence at Windsor in the English county of Berkshire.
Windsor Castle