Dublin Corporation known by generations of Dubliners simply as The Corpo, is the former name given to the city government and its administrative organisation in Dublin between 1661 and 1 January 2002. It is now known as Dublin City Council

Dublin City Council

Dublin City Council is the local authority for the city of Dublin in Ireland. It has 52 members and is the largest local authority in Ireland. Until 2001, it was known as Dublin Corporation.-Legal status:...

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The long form of its name was The Lord Mayor, Aldermen and Burgesses of the City of Dublin.
Dublin Corporation first came into being under the Anglo-Norman

Normans

The Normans were the people who gave their name to Normandy, a region in northern France. They were descended from Norse Viking conquerors of the territory and the native population of Frankish and Gallo-Roman stock...

s in Dublin in the late 13th century.