Quidde, Ludwig Keywords: Germany | Middle Ages | Peace | Mots clefs: Allemagne | Moyen-âge | Paix | ABSTRACT The aim of Ludwig Quidde’s course is to describe a development not taken place in the field of international law but in the field of German Constitutional Law. But this development offers very curious and very interesting analogies with the development of international law issues. The first part of the course focuses on the period from the primitive times to the end of the Carolingians (Germanic law, migrat…