HMS Greetham was one of 93 ships of the Ham class of inshore minesweepers. All ships in this class had names chosen from villages ending in -ham. The minesweeper was built by the firm of Herd & McKenzie in Buckie, Moray and was named after Greetham, Lincolnshire. Entering service in 1955, the vessel was transferred to the Libyan Navy in 1962 on loan and permanently in 1966. Renamed Zuara, the minesweeper was used as a patrol vessel until 1973. Zuara was sold to Captain Morgan Cruises of Malta for commercial use and renamed Lady Davinia. The ship was taken out of service in 2007 and laid up at Sliema Creek. Lady Davinia sank at her moorings in 2008 and for a short time became a diving attraction but in 2011 the wreck was partially broken up after being named a navigational hazard.