Carolingian

Concise Oxford English Dictionary © 2008 Oxford University Press:
Carolingian /ˌkarəˈlɪndʒɪən/ (also Carlovingian)

▶adjective

• 1 relating to or denoting the Frankish dynasty founded by Charlemagne's father (Pepin III), which ruled in western Europe from 750 to 987.

• 2 denoting a minuscule script developed in France during the time of Charlemagne, on which modern lower-case letters are largely based.

▶noun a member of the Carolingian dynasty.

– origin alt. of earlier Carlovingian, by assoc. with med. L. Carolus ‘Charles’.