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.
George King-Hall Admiral Sir George Fowler King–Hall, KCB, CVO (14 August 1850 – 10 September 1939) was a senior officer of the Royal Navy.