The period from the mid-8th to the early 10th century when western Europe was dominated by the Frankish Carolingian dynasty. The dynasty takes its name from Carolus, the Latinized name of the ruler also known as Charlemagne (748-814), and his grandfather Charles Martel (ca. 688-741). In the arts and architecture, the Carolingian period was characterized by a revival of the forms of classical antiquity. Web resource here.
Front cover of the binding of the Lindau Gospels. Carolingian. Ca. 870-880. Morgan Library and Museum, New York. Photo: Steven Zucker.