Britannia secunda

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The Britannia secunda was a province of the Roman Empire in what is now Great Britain . It was created in the first half of the 4th century AD under Emperor Diocletian by dividing the province of Britannia inferior . The capital of Britannia secunda was Eboracum , today's York . Their territory included northern England and probably also North Wales . In 369 the province of Valentia with the capital Luguvallium ( Carlisle ) was detached from its territory. See also: List of Roman provinces from Diocletian