How did the territory of the Frankish kingdom come about?

The Franks were called a large tribal union, which consisted of ancient Germanic tribes (Cigambras, Hamavs, Bruckters, Tenkters, etc.)
The Franks lived east of the lower Rhine and made up two groups: the Sali and the Ripuari.
The Merovingian dynasty took the main position among the Sali during the period of the great migration of peoples.
One of the representatives of the Clovis dynasty (466-511), at the end of the 5th century, headed the Salic Franks. This great king laid the foundation for the powerful Frankish monarchy.