The western extent of modern-day Switzerland is part of the territory of the Kings of the Burgundians from the end of the fourth century.

The Alemanni settle the Swiss plateau in the fifth century and will settle the valleys of the Alps in the eighth century, forming Alemannia.

Modern-day Switzerland is therefore then divided between the kingdoms of Alemannia and Burgundy.

The entire region becomes part of the expanding Frankish Empire in the sixth century, following Clovis I's victory over the Alemanni at Tolbiac in 504, and later Frankish domination of the Burgundians.