Dux et princeps Francorum in the context of "Hugh Capet"

The Carolingian dynasty (/ˌkærəˈlɪndʒiən/ KARR-ə-LIN-jee-ən; known variously as the Carlovingians, Carolingus, Carolings, Karolinger or Karlings) 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. Charlemagne's 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 Carolingian dynasty (/ˌkærəˈlɪndʒiən/ KARR-ə-LIN-jee-ən; known variously as the Carlovingians, Carolingi, Carolings, Karolinger or Karlings) 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. Charlemagne's 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.