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 Scotland beyond it, they never succeeded in conquering the reaches of Britain beyond the Tyne.
Britannia Inferior extended as far north as Hadrian's Wall. This Hadrian's Wall was the northernmost border of the Roman Empire. The Romans invaded modern-day Northumberland and Scotland beyond it. They never succeeded in conquering the reaches of Britain beyond the Tyne.