Mark McDonnell, 5th Earl of Antrim

Captain Mark McDonnell, 5th Earl of Antrim DL (né Kerr; 3 April 1814 – 19 December 1869), was an Anglo-Irish peer of Irish and Scottish descent who served in the Royal Navy.

Frederic Bertie, son of the 4th Earl of Abingdon), Lady Caroline Mary Kerr (who married the Rev.

His maternal aunt was Anne MacDonnell, 2nd Countess of Antrim (who married Sir Henry Vane-Tempest, 2nd Baronet, and Edmund Phelps), who succeeded her father's earldom while the marquisate became extinct upon his death in 1791.

[3] Upon the death of his elder brother on 19 July 1855, he succeeded as the 5th Viscount Dunluce and the 5th Earl of Antrim, both in the Peerage of Ireland.

His widow, the dowager Countess of Antrim, died on 21 April 1892 at Fettwecairne House, Kincardineshire, Scotland.