Anglo-Norman invasion of Ireland: The Kingdom of Dublin falls to Anglo-Norman invaders.
Anglo-Norman invasion of Ireland
The Anglo-Norman invasion of Ireland took place during the late 12th century, when Anglo-Normans gradually conquered and acquired large swathes of land in Ireland over which the monarchs of England then claimed sovereignty. The Anglo-Normans claimed the invasion was sanctioned by the papal bull Laudabiliter.
Kingdom of Dublin
The Kingdom of Dublin was a Norse kingdom in Ireland that lasted from roughly 853 AD to 1170 AD. It was the first and longest-lasting Norse kingdom in Ireland, founded by Vikings who invaded the territory around Dublin in the 9th century. Its territory corresponded to most of present-day County Dublin.
Anglo-Normans
The Anglo-Normans were the medieval ruling class in the Kingdom of England following the Norman Conquest. They were primarily a combination of Normans, Bretons, Flemings, Frenchmen, Anglo-Saxons and Celtic Britons.
September 21
September 21 is the 264th day of the year in the Gregorian calendar; 101 days remain until the end of the year.