Fra' Robert Matthew Festing GCStJ OBE TD DL was an English Roman Catholic official who was the Prince and Grand Master of the Sovereign Military Order of Malta from 2008 until his resignation on 28 January 2017, following a dispute with the Vatican.

Andrew Willoughby Ninian Bertie was Prince and Grand Master of the Sovereign Military Order of Malta from 1988 until his death in 2008.