Leinster
Leinster ( — Irish: Laighin / Cúige Laighean — pronounced [ˈl̪ˠaːjɪnʲ]) is one of the Provinces of Ireland situated in the east of Ireland. It comprises the ancient Kingdoms of Mide, Osraige and Leinster. Following the 12th-century Norman invasion of Ireland, the historic fifths of Leinster and Mide gradually merged, mainly due to the impact of the Pale, which straddled both, thereby forming the present-day province of Leinster. The ancient kingdoms were shired into a number of counties for administrative and judicial purposes. In later centuries, local government legislation has seen further sub-division of the historic counties.
Leinster has no official function for local-government purposes. However, the province is an officially recognised subdivision of Ireland. It is listed on ISO-3166-2 as one of the four provinces of Ireland and "IE-L" is attributed to Leinster as its country sub-division code.
Leinster had a population of 2,504,814 according to the 2011 census, making it the most populous province in the country The traditional flag of Leinster features a golden harp on a green background.