Northern Ireland (Irish: Tuaisceart Éireann pronounced [ˈt̪ˠuəʃcəɾˠt̪ˠ ˈeːɾʲən̪ˠ] ( listen), Ulster Scots: Norlin Airlann or Norlin Airlan) is a part of the United Kingdom in the north-east of the island of Ireland. It is variously described as a country, province or region of the UK, amongst other terms. Northern Ireland shares a border to the south and west with the Republic of Ireland. As of 2011, its population was 1,810,863, constituting about 30% of the island's total population and about 3% of the population of the United Kingdom. Since the signing of the Good Friday Agreement in 1998, Northern Ireland is largely self-governing. According to the agreement, Northern Ireland co-operates with the rest of Ireland on some policy areas, while other areas are reserved for the Government of the United Kingdom, though the Republic of Ireland "may put forward views and proposals" with "determined efforts to resolve disagreements between [the two governments]".
Carrickfergus (from Irish: Carraig Fhearghais, meaning "rock of Fergus"), known locally and colloquially as "Carrick", is a large town in County Antrim, Northern Ireland. It is located on the north shore of Belfast Lough, 11 miles (18 km) from Belfast. The town had a population of 27,201 at the 2001 Census and takes its name from Fergus Mór mac Eirc, the 6th century king of Dál Riata. It is County Antrim's oldest town and one of the oldest settlements in Northern Ireland as a whole. Carrickfergus is the administrative centre for Carrickfergus Borough Council and forms part of the Belfast Metropolitan Area.
The town is the subject of the classic Irish folk song "Carrickfergus", a 19th-century translation of an Irish-language song (Do Bhí Bean Uasal) from Munster, which begins with the words, "I wish I was in Carrickfergus."
The British peerage title of Baron Carrickfergus, which had become extinct in 1883, was bestowed upon Prince William on his wedding day on 29 April 2011.