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Faculty of Law Chair of Legal History, Ecclesiastical Law, Legal Theory and Private Law

Prof. Dr. iur. Andreas Thier, M. A.

Rämistrasse 74/11, 8001 Zurich
Office RAI H 147 (Prof. Thier), RAI H 123 (assistance) and RAI H 111 (secretariat)

Office hours:  by arrangement
Phone secretariat:  +41 (0)44 634 30 34
Phone chair assistance: +41 (0)44 634 30 33
  +41 (0)44 634 30 35
  +41 (0)44 634 30 36
  +41 (0)44 634 44 77


Weiterführende Informationen


Legal History App

Some of the courses are accompanied by the Legal History App (LHA).

Web version


Creating and Sharing Legal Knowledge in the Twelfth Century
Sankt Gallen, Stiftsbibliothek, 673 and Its Context

Edited by: Thier, Andreas; Dusil, Stephan

The Decretum Gratiani is the cornerstone of medieval canon law, and the manuscript St Gallen, Stiftsbibliothek, 673 an essential witness to its evolution. The studies in this volume focus on that manuscript, providing critical insights into its genesis, linguistic features, and use of Roman Law, while evaluating its attraction to medieval readers and modern scholars. Together, these studies offer a fascinating view on the evolution of the Decretum Gratiani, as well as granting new insights on the complex dynamics and processes by which legal knowledge was first created and then transferred in medieval jurisprudence. Contributors are Enrique de León, Stephan Dusil, Melodie H. Eichbauer, Atria A. Larson, Titus Lenherr, Philipp Lenz, Kenneth Pennington, Andreas Thier, José Miguel Viejo-Ximénez, John C. Wei, and Anders Winroth.

Available now in bookstores.

Buchcover der Staat

Verfassung und Krieg in der Verfassungsgeschichte
Beihefte zu »Der Staat« (BH STAAT), Band 26

L. Schilling (Hrsg.) | Ch. Schönberger (Hrsg.) | A. Thier (Hrsg.) | H. Menges (Mitarb.)

The relationship between constitutional orders and war is a historical constant. The phenomenological diversity of the use of military force makes the limitation of wars a fundamental challenge, especially for constitutional and international law. For wars also have effects on the structures and functional forms of legal orders of sovereign rule. The contributions in this volume examine these developmental dynamics in historical longitudinal section. The perspective ranges from the European High Middle Ages to the early modern period and the beginning of the modern era to the present day of national and international law of war. It becomes apparent that the interconnections between constitutional orders of sovereign rule and armed conflicts must be understood as a complex process that is always new, even if individual patterns of historical development can be discerned.

Available now in bookstores

Eike von Repgow

Legal History Online

Review and deepen your knowledge in our online legal history tutorial.

Legal History Online


forum historiae iuris

The Open Access Journal of Legal History

forum historiae iuris