Donald A. Bullough

Early medieval Rome and the Christian West

2000

Carolingian renewal

1991

Ideal and reality in Frankish and Anglo-Saxon society

1983

The writing-office of the Duke

The writing-office of the Dukes of Spoleto in the eighth century

1971

Le siècle de Charlemagne

Le siècle de Charlemagne

1967

Italy and her invaders

1800