The cosmic theme of the Prima Clementis and its significance for the concept of Roman rulership.--The significance of the Epistola Clementis in the pseudo-Clementines.--The Bible and principles of government in the Middle Ages.--Leo I and the theme of papal primacy.--Public welfare and social legislation in the early medieval councils.--Der Souveränitätsgedanke in den mittelalterlichen Krönungsordines.--Nos si aliquid incompetenter.--Schranken der Königsgewalt im Mittelalter.--The origins of the Ottonianum.--A note on inalienability in Gregory VII.--Romanus pontifex indubitanter efficitur sanctus.--Juristic obstacles to the emergence of the concept of the state in the Middle Ages.--On the influence of Geoffrey of Monmouth in English history.--Über eine kanonistische Vorlage Friedrichs I.--The influence of John of Salisbury on medieval Italian jurists.--A forgotten dispute at Bridlington Priory and its canonistic setting.--St. Bernard and the nascent international law