Studied History, Geography, Pedagogy and Art History, Universität Münster (1975–1982)
1982 State Examination and 1986 PhD, Universität Münster
1996 Habilitation and permission to lecture (Medieval History, Comparative Regional History, Auxiliary Sciences of History), Universität Münste
1986–1989 Research assistant, Collaborative Research Center 231 "Träger, Felder, Formen pragmatischer Schriftlichkeit im Mittelalter"
1989–1995 Research assistant, Department of History, Universität Münster, Abteilung für Westfälische Landesgeschichte
1995–1996 Research assistant, Department of History, Universität Münster, Abteilung für Westfälische Landesgeschichte
1996–1997 Lecturer, Universität Münster
since 1997 Corresponding member of the Historical Commission for Westphalia
1997–2000 Corresponding member of the Arbeitskreis für südwestdeutsche Stadtgeschichtsforschung
since 1998 Member of the board of trustees of the Institute for Comparative Urban History Münster
since 1998 Member of the Alemannic Institute Freiburg
Summer 1996 Interim professor (C4), Universität Regensburg
Winter 1996/97 Interim professor (C4), Humboldt-Universität Berlin
Summer 1997 Interim professor (C3), Eberhard-Karls-Universität Tübingen
since October 1997 Professor for Medieval History, Universität Tübingen
since 2000 Member of the advisory board of the Arbeitskreis für südwestdeutsche Stadtgeschichtsforschung
2002 and 2016 Visiting Professor at the Université Aix-en-Provence/Marseille (AMU)
since October 2003 Programme officer of the German-French study programme („TübAix“)
since November 2003 Member of the scientific advisory board of the museum "Altes Zollhaus", Hitzacker (Elbe)
since June 2005 permanent delegate of the University of Tübingen to the Philosophischer Fakultätentag
since November 2008 Member of the executive board of the Südwestdeutscher Arbeitskreis für Stadtgeschichtsforschung
since 2009 member of the extended executive board of the Philosophischer Fakultätentag
October 2010–September 2016 elected member of the Faculty Council of the Faculty of Philosophy, University of Tübingen
since July 2012 Member of the Kommission für Geschichtliche Landeskunde in Baden-Württemberg
2014 Visiting professor ath the Belarusian State University of Minsk
since 2014 Co-editor of the „Schriften zur südwestdeutschen Landeskunde“
since 2016 Member of the Scientific Honorary Committee of the Corpus membranarum Capuanarum
since June 2017 German spokeswoman for the Humanities and Social Sciences Division of the German-French Université/Université Franco-Allemand (DFH/UFH), Saarbrücken
Research Focus
History of the Holy Roman Empire and Constitutional History in the Later Middle Ages
The House of Luxemburg as a European dynasty
Places of power – topography of power in the Middle Ages
Urban History of the Middle Ages
Comparative city history of the Middle Ages as a research concept
History of courts and court regulations in the Late Middle Ages
The history of women and gender in the Late Middle Ages
Illegitimacy (Concubines/Bastards/Networking) in the Late Middle Ages
History of Italy in the Late Middle Ages
History of administration in the Later Middle Ages
Regional History of Westphalia, Lower Saxony and south-west Germany
Westphalian nobility in the High Middle Ages
History of the Electoral Palatinate
Religious material culture of the late Middle Ages