Francs rhénans
As the power of the Roman empire declined, many of these tribes came to be seen collectively as Ripuarian Franks and they pushed forward along both banks of the Rhine, and by the end of the fifth century had conquered all the lands that had formerly been under Roman influence. By the eighth century, the Frankish dominion was firmly established in western Germany and northern Gaul, but at the same time, to the north, Westphalia was being taken over by Saxons pushing south.