The Carolingian dynasty was a Frankish noble family named after Charles Martel and his grandson Charlemagne, descendants of the Arnulfing and Pippinid clans of the 7th century AD. The dynasty consolidated its power in the 8th century, eventually making the offices of mayor of the palace and dux et princeps Francorum hereditary, and becoming the de facto rulers of the Franks as the real powers behind the Merovingian throne. In 751 the Merovingian dynasty which had ruled the Franks was overthrown with the consent of the Papacy and the aristocracy, and Pepin the Short, son of Martel, was crowned King of the Franks. The Carolingian dynasty reached its peak in 800 with the crowning of Charlemagne as the first Emperor of the Romans in the West in over three centuries. Nearly every monarch of France from Charlemagne's son Louis the Pious till the penultimate monarch of France Louis Philippe have been his descendants. His death in 814 began an extended period of fragmentation of the Carolingian Empire and decline that would eventually lead to the evolution of the Kingdom of France and the Holy Roman Empire.

The Franks were a western European people during the Roman Empire and Early Middle Ages. They began as a Germanic people who lived near the Lower Rhine, on the northern continental frontier of the empire. They subsequently expanded their power and influence during the Middle Ages, until much of the population of western Europe, particularly in and 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.