By letters patent under the Great Seal of Ireland, dated at Drogheda, 23 Feb, 7EdIV, the King granted for life to James Dockray, Esq., Constable of the King's Castle at Cragfergus for his good service to the King's father and the King, and because the castle is a garrison of war and is surrounded by Irish and Scots without succour of the English for 60 miles, and the Constable formerly had 24 soldiers for its safeguarding, but he keeps it alone with a force at his own expense, that he shall have 10 soldiers within the Castle and 4d daily for each of them, and grants of 40 marks from the Lordship of ardmulghan, etc, and the customs and cokets in the ports and franchises of Ardeglasse and Cragfergus and 45 marks elsewhere specified.

Source: Cal.Pat.Rolls 1469 P161