Who was a major force in reviving the classical style in early medieval times was?

A major force in reviving the classical style during early medieval times was Charlemagne, the King of the Franks and later the Emperor of the Romans. His reign in the late 8th and early 9th centuries marked a cultural revival known as the Carolingian Renaissance, which sought to restore classical learning and art. Charlemagne promoted education, literacy, and the preservation of classical texts, encouraging scholars to study and copy ancient works. This revival laid the groundwork for the later developments of the Renaissance.