Which roman prototype provided an artistic model for realizing charlemagne's vision of "the renewal of the roman empire"?

Roman prototype that provided an artistic model for realizing Charlemagne's vision of "the Renewal of the Roman Empire" include the equestrian portraits of the emperor, basilica-plan churches, and illuminated manuscripts. These prototypes had a lavish look and featured elements such as Gold which would revive the empire’s glory

Explanation:

The Roman prototype that provided an artistic model to realize the vision of Charlemagne was the sacred art, since this type of art of the Middle Ages had strong connections with Christianity, as it was worshiped to the sacred or divine. The artistic models used were Romanesque and Gothic. Such methods allowed Charlemagne to create the Holy Roman Empire, which managed to maintain the unification of countries such as France, Germany, Italy among others; as well as the establishment of order in Europe, which were carried out during the Carolingian period that lasted approximately 46 years. This period was his term.