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The International Encyclopaedia for the Middle Ages (IEMA) – A Supplement to Lexikon des Mittelalters is produced under the joint auspices of the Center for Medieval and Renaissance Studies at UCLA and Brepols Publishers. Its Editorial Board comprises scholars from universities in Europe (Hamburg, Oxford, Leeds, Poitiers and Budapest) and the United States (UCLA, Yale and Columbia).

The purpose of IEMA is to supplement the Lexikon des Mittelalters with newly-written commissioned articles, fully peer-reviewed as well as with articles from reference books.


key_features Key Features

  • Fully integrated with the Lexikon des Mittelalters
  • Editorial Board : Michael J. B. Allen (UCLA), Janos Bak (CEU), Paul Freedman (Yale), Patrick Geary (editor in chief, UCLA), Hans-Werner Goetz (Hamburg), Eric Palazzo (Poitiers), Claudia Rapp (UCLA), Chase Robinson (Oxford), Paul Strohm (Columbia), Blair Sullivan (executive editor, UCLA), Ian Wood (Leeds)
  • Live links to the International Medieval Bibliography and to the Bibliographie de civilisation médiévale
  • IEMA represents about 2,500 entries and subentries
  • The database is updated yearly with new entries and subentries


IEMA draws some of its information from the following books:

  • Fasti Ecclesiae Gallicanae. Répertoire prosopographique des évêques, dignitaires et chanoines de France de 1200 à 1500 (Turnhout: Brepols)
  • Die Bischöfe des Heiligen Römischen Reiches 1198-1448, by Erwin Gatz (Berlin: Duncker & Humblot, 2001)
  • Nationaal Biografisch Woordenboek (Brussel: Koninklijke Vlaamse Academie van België voor Wetenschappen en Kunsten, 1964-)
  • Normannia monastica (Xe-XIIe siècle). Prosopographie des abbés bénédictins, by Véronique Gazeau (Caen, Publications du CRAHM, 2008)
  • Encyclopaedic Prosopographical Lexicon of Byzantine History and Civilization, by A.G.C. Savides & B. Hendrickx (Turnhout: Brepols Publishers, 2007-)

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English version (PDF).

slide3 Slides

A PowerPoint tutorial (in English) is available here.

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related Clusters & Related Databases


The Lexikon des Mittelalters Online + International Encyclopaedia for the Middle Ages are part of the cluster BREPOLiS Medieval Encyclopaedias, together with Europa Sacra.

Linked Databases

Live links to the International Medieval Bibliography and Bibliographie de civilisation médiévale

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