The Franks ( or ) were a group of Germanic peoples whose name was first mentioned in 3rd-century Roman sources, and associated with tribes between the Lower Rhine and the Ems River, on the edge of the Roman Empire. Later the term was associated with Romanized Germanic dynasties within the collapsing Western Roman Empire, who eventually commanded the whole region between the rivers Loire and Rhine. They imposed power over many other post-Roman kingdoms and Germanic peoples. Beginning with Charlemagne in 800, Frankish rulers were given recognition by the Catholic Church as successors to the old rulers of the Western Roman Empire. Although the Frankish name does not appear until the 3rd century, at least some of the original Frankish tribes had long been known to the Romans under their own names, both as allies providing soldiers, and as enemies. The new name first appears when the Romans and their allies were losing control of the Rhine region. The Franks were first reported as working together to raid Roman territory. However, from the beginning, the Franks also suffered attacks upon them from outside their frontier area, by the Saxons, for example, and as frontier tribes they desired to move into Roman territory, with which they had centuries of close contact. The Germanic tribes which formed the Frankish federation in Late Antiquity are associated with the Weser-Rhine Germanic/Istvaeonic cultural-linguistic grouping. Frankish peoples inside Rome's frontier on the Rhine river included the Salian Franks who from their first appearance were permitted to live in Roman territory, and the Ripuarian or Rhineland Franks who, after many attempts, eventually conquered the Roman frontier city of Cologne and took control of the left bank of the Rhine. Later, in a period of factional conflict in the 450s and 460s, Childeric I, a Frank, was one of several military leaders commanding Roman forces with various ethnic affiliations in Roman Gaul (roughly modern France). Childeric and his son Clovis I faced competition from the Roman Aegidius as competitor for the "kingship" of the Franks associated with the Roman Loire forces (according to Gregory of Tours, Aegidius held the kingship of the Franks for 8 years while Childeric was in exile). This new type of kingship, perhaps inspired by Alaric I, represents the start of the Merovingian dynasty which succeeded in conquering most of Gaul in the 6th century, as well as establishing its leadership over all the