Lincestre
Lancaster is a historic city located in the northwest of England, in the county of Lancashire.
In the Vulgate Merlin, the kings in rebellion against Arthur met there to devise a plan for opposing the Saxon invasions.
Lancaster | 0 to the 9th century AD
Lancaster is one of the oldest cities in England and has a rich history dating back over a thousand years. It is situated along the River Lune, near the Irish Sea. During the time period given, Lancaster would have been a relatively small settlement.
Roman Period
Lancaster and its surrounding region, which is part of what is now Lancashire, were within the boundaries of Roman Britain. The Romans established roads and fortifications in the area, including the nearby Roman fort at Ribchester, which was part of the Roman road network connecting Chester and York. While Lancaster itself may not have been a major Roman settlement, it would have been influenced by Roman presence and administration.
Celtic and Early Medieval Inhabitants
Prior to and during the early medieval period, the region would have been inhabited by Celtic-speaking peoples, particularly Brigantes, and ancient Celtic tribe. The arrival of the Anglo-Saxons from the fifth century onward and Viking incursions during the eighth and ninth centuries may have had some impact on the area.
Christianity
The spread of Christianity in Britain began during the Roman period and continued into the early medieval period. By the sixth and seventh centuries AD, Christian missions from Ireland and elsewhere were active in converting the local population to Christianity. Lancaster and its surrounding area may have been influenced by early Christian missionaries and the establishment of Christian communities.
Source
Vulgate Merlin | 1220-1235