Sir Charles Peter Hope, KM, GCJCO, Died-12 March 1999. Invested in 1982. Held the rank of Knight Grand Cross of Justice of the Constantinian Order.
Lieutenant Colonel Humphrey Joseph Giles Weld, KM, GCJCO, MC, JP, Died-1 July 1998. Invested in 1982. Held the rank of Knight Grand Cross of Justice of the Constantinian Order.
Lady Hilda Susan Mary Swan, DJCO, Died-4 December 1995. Invested in 1975. Held the rank of Dame of Justice of the Constantinian Order.
HE The Ven Bailiff Fra William Anthony Furness, GCGCO, Died-1 May 1995. Invested in 1975. Held the rank of Knight Grand Cross of Grace of the Constantinian Order.
Sir Harold Acton, CBE, GCGCO, Died-27 February 1994. Invested in 1970. Held the rank of Knight Grand Cross of Grace of the Constantinian Order.
Countess Mathilda Maria Ciechanowiecka, GCJCO, Died-6 September 1991. Held the rank of Dame Grand Cross of Justice of the Constantinian Order.
Sir Rupert Iain Moncreiffe of That Ilk, CVO, QC, Died-27 February 1985. Invested in 1982. Held the rank of Gold Benemerenti Medallist of the Constantinian Order.