Ripuarian Franks

State · 238–509 CE · at its largest around 469 CE

Frankish group settled along the Rhine around Cologne, later united with the Salian Franks under Clovis I.

On its lands while it lasted

• Trier (16 BCE – 1618 CE): Capital of Electorate of Trier (1333–1618).
• Cologne (c. 261 CE): Capital of Gallic Empire (261–274).

More on Wikipedia.