Glamorgan or Glamorganshire (Welsh: Morgannwg) is one of the thirteen historic counties and a former administrative county of Wales. It was originally an early medieval kingdom of varying boundaries known as Glywysing until taken over by the Normans as a lordship. Glamorgan is latterly represented by the three preserved counties of West Glamorgan, Mid Glamorgan and South Glamorgan. The name also survives in that of the county borough of the Vale of Glamorgan.
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