Cities and City Leagues in the Middle Ages

History of the Nobility and Castles

Regional History of the Middle Rhine-Moselle Region

Editions and Lexicography

Monograph:

City Leagues and City Networks on the Middle Rhine in the 13th and 14th Centuries, Diss. phil., Trier 2003 (Trierer Historische Forschungen 54), Trier 2005.

Reviews: Groten, Sehepunkte, 2007; Stercken, Rheinische Vierteljahrsblätter 72, 2008; Walter, Traverse 15, 2008/2; Eberl, Die alte Stadt 35, 2008; Modestin, Deutsches Archiv 64, 2008

Source Editions:

(in collaboration with Johannes Deissler, Sarah Jochum, and Maxim Novak), Sources on the History of the Jews in the Diocese of Würzburg (1273–1347), 658 regesta, in: Corpus of Sources on the History of the Jews in the Late Medieval Empire, ed. by Alfred Haverkamp and Jörg R. Müller, Trier, Mainz 2015, (URL ibid.)

Reutlingen Document Collection, Part 1: Documents up to 1399, Reutlingen 2019; Part 2: Documents from 1400 to 1500 (in collaboration with Roland Deigendesch), Reutlingen 2023.

Essays, contributions to anthologies:

Ulmen in the Middle Ages, in: *Chronik Ulmen*, ed. by the Municipality of Ulmen, Briedel 2000, pp. 81–117. *

* Mainz, Worms, and Speyer in the Tension Between the Bishop, the Nobility, and the Empire around 1300, in: *Städtelandschaft – Städtenetz – zentralörtliches Gefüge. Approaches and Findings on the History of Cities in the High and Late Middle Ages, ed. by Monika Escher, Alfred Haverkamp, and Frank G. Hirschmann (Trierer Historische Forschungen 43), Mainz 2000, pp. 295–347, 1 color map.

Jews and Rule in the Middle Rhine Region on the Eve of the Plague Pogroms. Essay with color map, in: History of the Jews in the Middle Ages from the North Sea to the Southern Alps. Part 1: Commentary Volume, ed. by Alfred Haverkamp (Research on the History of the Jews, Section A: Treatises, Vol. 14/1), Hanover 2002, pp. 251–265.

Monarchy – Princes – City Leagues. The Foreign Relations of the City of Worms in the Late Middle Ages, in: History of the City of Worms, ed. by Gerold Bönnen, Stuttgart 2005, 22015, pp. 180–192, 871–877.

Heinrich von Ulmen (c. 1175–1234) – A Crusader Between the Eifel and the Mediterranean, in: The Rhine-Meuse Region in Historical Portraits: A Portrait of a Core European Region, edited by Franz Irsigler and Gisela Minn, Trier 2005, pp. 80–91.

Museum Trail: A Historical Walking Tour of Carolinensiel, edited by Manfred Sell (Publications of the German Siel Harbor Museum, Issue 5), Carolinensiel 2005.

The Family of Sophie Wencke: Biographical Profiles of a Shipbuilding Dynasty, in: Anja Benscheidt and Alfred Kube (eds.), The Landscape Painter Sophie Wencke: From the Wencke Shipyard in Bremerhaven to Worpswede (Historisches Museum Bremerhaven. Kleine Schriften 8), Bremerhaven 2008, pp. 72–85.

(with Heike Ritter-Eden), North Sea Tourism, edited by Manfred Sell (Publications of the German Sielhafen Museum, Issue 6), Carolinensiel 2008.

A Village with Many Lords: Cond from 857 to 1794, in: Life by the River. Cond on the Moselle in the Past and Present, edited by the Pumpenfest Village Association, Cochem-Cond 2010, pp. 75–143.

Under French rule: Cond from 1794 to 1814, ibid., pp. 145–157

(with Rudolf Laux and Karl Lenz), “A Village in the midst of Structural Change: Altcond from 1945 to the Present,” ibid., pp. 205–223.

Messenger Services and Communication Among the Cathedral Cities of the Middle Rhine from 1254 to 1384, in: Specialization and Professionalization. Actors and Forums of Urban Foreign Policy during the Late Middle Ages and Early Modern Period, edited by Christian Jörg and Michael Jucker (Trier Contributions to Historical Cultural Studies 1), Wiesbaden 2010, pp. 95–104.

(with Michel Margue), “The Reception of Krak des Chevaliers in Historiography, Castle Research, and History Education,” in: Krak des Chevaliers in Syria: Archaeology and Architectural Research 2003–2008, ed. by John Zimmer, Werner Meyer, and Letizia Boscardin, Koblenz 2011, pp. 363–373.

(with Michel Margue), “The Lotharingian Participants in the Crusades to the Holy Land: Aspects of Cultural Exchange between the West and the East from the 11th to the 13th Century,” in: “Ex oriente – Crusader Castles as Testimonies to Historical and Cultural Interactions between the West and the East in the Middle Ages,” conference of the European Castle Institute at Marksburg Castle, September 24–26, 2010 (Burgen und Schlösser 4/2011), pp. 25–34.

The Ulmen Truce of 1399 in Its Historical Context, in: Sigrid Hirbodian/Christian Jörg/Sabine Klapp/Jörg R. Müller (eds.), Pro multis beneficiis. Festschrift for Friedhelm Burgard. Research on the History of the Jews and the Trier Region (Trier Historical Research 68), Trier 2012, pp. 435–446.

Vianden – The Changing Roles of a Castle Throughout History, in: Olaf Wagener (ed.), Castles and Fortifications in the Eifel: From Antiquity to the 20th Century (Proceedings of the 8th Academic Conference in Oberfell on the Moselle), Petersberg 2013, pp. 230–241.

Castles as Instruments of Lordly Spatial Construction and Representation: The Example of the County of Vianden, in: Christian Wille/Rachel Reckinger/Sonja Kmec/Markus Hesse (eds.): Spaces and Identities in Border Regions. Politics – Media – Subject. Bielefeld 2014, pp. 93–104; published in English by the same authors, Bielefeld 2016 (Castles as Instruments of Hegemonic Space Construction and Representation. The Example of the County of Vianden).

The Destruction During the War of the Palatinate Succession as a “Trail of Fire” in Historiography, in: Olaf Wagener (ed.), The Use of Fire and Fires in Castles, Towns, and Monasteries in the Middle Ages and Early Modern Period (Proceedings of the 10th Academic Conference in Oberfell on the Moselle), Petersberg 2015, pp. 61–69.

The Legacy of the Crusades on the Rhine and Moselle, in: Peter Pfeiffer (ed.), The Middle Ages on the Rhine and Moselle: Selected Research Essays on the Economic, Artistic, and Social History of a Cultural Landscape, Cochem 2016, pp. 23–41.

The Rhenish League of 1254/56 in the Context of the Middle Rhine Urban Landscape, in: Ferdinand Opll/Andreas Weigl (eds.), City Leagues: On the Phenomenon of Inter-City Association from Antiquity to the Present (Contributions to the History of Central European Cities 27), Vienna 2017, pp. 139–156.

Hierarchies Among Neighboring Cities: The Example of the Rhenish City League, 1381–1389, in: Guy Thewes and Martin Uhrmacher (eds.), Extra muros. Suburban Spaces in the Late Middle Ages and Early Modern Period/Espaces suburbains au Bas Moyen Age et à l’époque moderne (Urban Studies A/91) Vienna/Cologne/Weimar 2019, pp. 351–365.

The Alliance of the Cities of Mainz, Worms, and Speyer of 1293. Opportunities and Limits of City-League Policy Between Episcopal Rule and the Struggle for the Throne, in: Roland Deigendesch/Christian Jörg (eds.), City Leagues and Urban Foreign Policy—Actors, Instruments, and Conflicts during the High and Late Middle Ages (City in History 44), Ostfildern 2019, pp. 89–102.

Guild Conflicts in Cities of Southwest Germany, in: Sigrid Hirbodian and Tjark Wegner (eds.), Uprising, Unrest, Anarchy! Forms of Resistance in Southwest Germany (Landeskundig. Tübingen Lectures on Regional History 5), Ostfildern 2019, pp. 37–56.

Arbitration and Conflict Resolution in the Rhenish City Leagues of the 13th and 14th Centuries, in: Claudia Garnier/Hendrik Baumbach (eds.), Origins of Arbitration in Germany: Concepts and Practices of Arbitration in the Roman-German Empire of the Late Middle Ages, in: Blätter für deutsche Landesgeschichte 155, 2019, pp. 285–297.

Reutlingen and Esslingen. Intercity Relations in the 14th Century: As Reflected in Historical Documents, in: Reutlinger Geschichtsblätter NF 59, 2020, pp. 91–107.

Agriculture in the Legal Sources of Reutlingen in the Late Middle Ages (1295–1500), in: Reutlinger Geschichtsblätter, New Series 60, 2021, pp. 55–76.

Did Vianden Belong to Luxembourg? On the Relationship Between the Two Realms from the Middle Ages to the French Revolution, in: Hémecht. Journal of Luxembourg History 3/5, 2023, pp. 272–284.

Village Life in the Trier Region from the 14th to the 17th Century: What Old Statutes Reveal, in: Yearbook of the Trier-Saarburg District 2024, pp. 119–131.

"Fake News" of the Middle Ages. Forged Documents from Trier from the 10th to the 12th Century, in: *Jahrbuch des Kreises Trier-Saarburg* 2025, 53–65.

Articles in reference works:

Articles about the following towns: Ahrweiler, Annweiler, Bacharach, Bensheim, Braubach, Brühl, Châtenois, Commercy, Dachstein, Dieburg, Dürkheim, Eltville, Euskirchen, Gau-Odernheim, Geisenheim, Hanau, Heinsberg, Heppenheim, Idstein, Ingelheim, Kaub, Königstein, Landau, Linz, Liverdun, Lorch, Mainz, Münzenberg, Neufchâteau, Neustadt/Weinstr., Nomeny, Oppenheim, Pfeddersheim, Rappoltsweiler, Recklinghausen, Remagen, Rheinbach, Rhens, Selz, Sinzig, St. Goar, Unna, Vaucouleurs, Weinheim, Wiesbaden, Windecken, in: Monika Escher/Frank G. Hirschmann, The Urban Centers of the High and Late Middle Ages. Comparative Studies on Cities and Urban Landscapes in the West of the Empire and in Eastern France, Vol. 2 (Trierer Historische Forschungen 50/2), Trier 2005.

www.historisches-lexikon-bayerns.de: Entries "Rhenish City Leagues (13th/14th Centuries)" and "City Leagues (Middle Ages/Early Modern Period)"

(with Michel Margue), Vianden (Veianen), in: Capital Cities of the Old Empire (1300–1800). A Handbook, Section I: Analytical Directory of Capital Cities, Part 2: Northwest, ed. by Harm von Seggern, Ostfildern 2022, pp. 564–569

Rhenish League of 1254, in: Concise Dictionary of German Legal History, Vol. 5, 32nd installment, Berlin 22024, cols. 1946–1948.

Rhenish League of Cities of 1381, ibid., cols. 1948–1950.

Presentations:

Mainz, Worms, and Speyer in the Tension Between the Bishop, the Nobility, and the Empire Around 1300, a lecture presented at the conference “Urban Landscape—Urban Network—Central Place Structure: Approaches and Findings on the History of Cities in the High and Late Middle Ages” on June 4, 1998, at the University of Trier.

The Goals and Functioning of the Confederation in Light of Later Confederations and Alliances, a lecture presented at the academic conference “The Rhenish Confederation of 1254/56 in Its Historical Context,” held on October 9, 2004, in Worms to mark the 750th anniversary of the Rhenish Confederation.

The Crusader Heinrich von Ulmen and the Stubener Staurotheque, a lecture delivered at the general meeting of the Calmont Region Support Association on April 19, 2006, in Ediger-Eller, and repeated on August 22, 2007, before the Ulmen chapter of the Eifelverein.

Envoys and Messengers in Communication Between the Cathedral Cities of the Middle Rhine (1254–1384), a presentation given at the academic conference “Political Knowledge, Specialization, and Professionalization: Actors and Forums of Urban ‘Foreign Policy’ during the Late Middle Ages and Early Modern Period” on December 8, 2006, at the University of Trier.

Stablo Abbey and the Origins of Cond: Commemorative Lecture on the occasion of the 1,150th anniversary of the first documented mention of Cochem-Cond on March 9, 2007.

The History of the Reception of Krak des Chevaliers in Historiography, Castle Studies, and History Education, a lecture presented at the conference of the European Castle Institute of the German Castle Association, “Ex oriente—The Crusader Castles as Testaments to Historical and Cultural Interactions between the West and the East in the Middle Ages,” held at Marksburg on September 25, 2010.

Vianden – The Changing Roles of a Castle, lecture given as part of the 40th Castle Seminar of the European Castle Institute at Vianden Castle, Luxembourg, on June 14, 2012, and repeated on November 3, 2012, at the 8th academic conference of the “Freundeskreis Bleidenberg e. V.” in Oberfell on the Moselle on the topic “Fortifications in the Eifel from Antiquity to the 20th Century.”

Does Vianden Belong to Luxembourg? – Reflections on a Contradictory History, lecture at the “Atelier d’histoire” at the University of Luxembourg on September 26, 2012.

Hierarchies Among Neighboring Cities: The Case of the Rhenish City League, 1381–1389, a lecture presented at the conference “Extra muros – Suburban Spaces in the Late Middle Ages and Early Modern Period” at the University of Luxembourg on February 22, 2013.

The Legacy of the Crusades on the Rhine and Moselle: A Lecture Delivered at the General Meeting of the Calmont Region Support Association in Ediger-Eller on April 19, 2013.

Castles as Spaces of Representation and Projection from the Middle Ages to the Present. The Example of the County of Vianden, lecture presented at the IDENT2 Colloquium at the University of Luxembourg on October 14, 2013.

The Destruction of Cochem in 1689. Lecture given on the occasion of the 325th anniversary commemoration at the Reichsburg Cochem on July 26, 2014.

The Destruction During the War of the Palatinate Succession as a “Trail of Fire” in Historiography, a lecture presented at the 8th academic conference of the “Freundeskreis Bleidenberg e. V.” in Oberfell on the Moselle on the topic “The Hut Is Burning—Fire in the Context of Medieval and Early Modern Buildings” on November 7, 2014.

The Alliance of the Cities of Mainz, Worms, and Speyer of 1293: Opportunities and Limits of Urban Alliance Policy Between Episcopal Rule and the Struggle for the Throne, lecture delivered at the 55th Annual Conference of the Southwest German Working Group for Urban History Research in Reutlingen on November 19, 2016.

Villa nuncupante cuchuma – The first written mention of Cochem 1,150 years ago, on December 20, 866; lecture at the Kapuzinerkloster Cultural Center in Cochem on December 20, 2016.

The Kurtrierische Amtsburgen in the Eifel as Administrative and Economic Centers, a lecture presented at the 12th conference of the Friends of Bleidenberg, the Wartburg Society, and the municipality of Oberfell, titled “Castles and Lordships as Economic Entities,” on November 4, 2017

Arbitration and Conflict Resolution in the Rhenish City Leagues of the 13th and 14th Centuries, lecture presented at the conference “Origins of Arbitration in Germany: Concepts and Practices of Arbitration in the Late Medieval Holy Roman Empire” at the University of Vechta on February 27, 2018

Guild Conflicts in Cities in Southwest Germany, Lecture in the Studium Generale series at the University of Tübingen on May 2, 2018

Reutlingen as an Imperial City in the Middle Ages. Based on research for the Reutlingen Document Collection, lecture presented to the Reutlingen Historical Society on October 11, 2018

Reutlingen and Esslingen. Inter-city Relations in the 14th Century as Reflected in Historical Documents, a lecture given on the occasion of the presentation of the Reutlingen Document Collection in Reutlingen on December 6, 2019, and repeated on December 10, 2019, at the Institute for Regional History in Tübingen.

City Leagues in the 13th and 14th Centuries: Political, Legal, and Military Structures and Perspectives, a lecture presented at the conference “Strong Together? 675 Years of the Upper Lusatian League of Six Cities: History – Culture – Education” in Zittau on September 10, 2021.

Non erat pax in omni terra. War and Peace in the Rhenish Confederation of 1254, lecture presented at the conference “Mars or Pax? ‘Rhenish’ Transitions from War to Peace,” the fall conference of the Department of Early Modern History and Rhenish Regional History at the University of Bonn on September 23, 2024.

From the Concrete to the Abstract: The Entries “unrein” and “unschädlich” in the German Legal Dictionary, a presentation given at the workshop on historical lexicography in Springiersbach on May 10, 2025.

What Is Legal Language? Overlaps and Differences from Everyday Language: The Example of the German Legal Dictionary, a presentation in the "Lexicography" section at the annual conference of the Society for Applied Linguistics (GAL) in Hildesheim on September 17, 2025

From the Oral to the Written: The Shift in Meaning of the Word “Urkunde” from the 9th to the 18th Century, a lecture presented at the Workshop on Historical Lexicography in Springiersbach on April 11, 2026.