How did carrickfergus get its name?
Score: 4.3/5 (2 votes) The town is said to take its name from Fergus Mór (Fergus the Great), the legendary king of Dál Riata. According to one tale, his ship ran aground on a rock by the shore, which became known as "Carraig Fhearghais" – the rock of Fergus. ... Belfast Lough itself was known as ...