Northern England Mamucium (Manchester) and Cataractonium (Catterick). Britannia Inferior extended as far north as Hadrian's Wall, which was the northernmost border of the Roman Empire. Although the Romans invaded modern-day Northumberland and part of Scotland beyond it, they never succeeded in conquering the reaches of Britain beyond the River Tyne. After the end of Roman rule in Britain and the arrival of the Angles, Yr Hen Ogledd (the "Old North") was divided into rival kingdoms, Bernicia, Deira, Rheged and Elmet. Bernicia covered lands north of the Tees, Deira corresponded roughly to the eastern half of modern-day Yorkshire, Rheged to Cumbria, and Elmet
Scotland during the Roman Empire as unified ideas until centuries later. In fact, the Roman Empire influenced every part of Scotland during the period: by the time of the Roman withdrawal from Britain around 410, the various Iron Age tribes native to the area had united as, or fallen under the control of, the Picts, while the southern half of the country was overrun by tribes of Romanized Britons. The Scoti (Gaelic Irish raiders) who would give Scotland its English name, had begun to settle along the west coast. All three groups may have been involved in the Great Conspiracy that overran Roman Britain in