Marcus Trevor, 1st Viscount Dungannon, was born in Rostrevor and served at Marston Moor as a Royalist, in Louth as a Parliamentarian, and then in Drogheda as a Royalist. At this point he submitted to the Parliamentarians, but became a Royalist again before the Restoration.

Born:	15 April 1616
Died:	3 January 1670