Breton/Freeciv

Description
Known to the Romans as Armorica, Brittany had been Celtic speaking for many centuries before Britons arrived in the peninsula as mercenaries, colonists and refugees in response to the chaos in Gaul and the invasion of Britain by Germanic tribes in the fifth century CE. Over the centuries, use of the Breton language has been pushed towards the west of the peninsula, with people speaking French instead. The Dukedom of Brittany itself was formally annexed to France in 1491.