Walter Ullmann

ACLS Humanities E-Book

The Growth of Papal Government in the Middle Ages: A study in the ideological relation of clerical to lay power

BIBLIOTECA STORICA LATERZA

Il papato nel Medioevo                          

Res Gestae

Radici del Rinascimento                          

Cambridge University Press

Law and Politics in Middle Ages                  

Routledge

The Medieval Idea of Law as Represented by Lucas de Penna (Routledge Revivals): A Study in Fourteenth-century Legal Scholarship

Routledge

Principles of Government and Politics in the Middle Ages (Routledge Revivals)

Johns Hopkins University Press

The Individual and Society in the Middle Ages    

Routledge

A Short History of the Papacy in the Middle Ages (English Edition)

Individuum und Gesellschaft im Mittelalter      

Penguin

Medieval Political Thought