Medieval cultural group from what is now Northern Germany
The Saxons, sometimes called the Old Saxons or Continental Saxons, were the Germanic people of early medieval "Old" Saxony (Latin: Antiqua Saxonia) which became a Carolingian "stem duchy" in 804, in what is now northern Germany. Many of their neighbours were, like them, Germanic-speaking, including the Franks and Thuringians to the south. The Frisians to the west, and the Angles and other German-speaking peoples to their northeast, were among the peoples who were originally referred to as "Saxons" in the context of early raiding and settlements in Roman Britain and Gaul.
https://en.wikipedia.org/wiki/Saxons