Franks

The Franks were originally a Germanic people who lived near the Lower Rhine, on the northern frontier of the late Roman Empire, but they successfully expanded their power and influence during the Middle Ages, until much of the population of western Europe, particularly in or near France, were commonly described as Franks, for example in the context of their joint efforts during the crusades starting in the 11th century. This expansion came about because the romanized Frankish dynasties based within the collapsing Western Roman Empire first became the rulers of the whole region between the rivers Loire and Rhine, and then subsequently imposed power over many other post-Roman kingdoms both inside and outside the old empire.