International Medieval Bibliography

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The IMB, long available in print and CD-ROM, is the most comprehensive index for Medieval Studies. The online database comprises over 300,000 records. All subjects relating to the Middle Ages are included, within the date range 400-1500 AD. Geographical areas covered are Europe, the Middle East and North Africa. There is free text searching within the records and searching by authors, titles, publication sources, years of publication, ISBN/ISSN, languages, subjects, place names, persons, families, texts, repositories, and centuries treated. A browse function within each field displays the available terms. Records can be saved to a file and exported to RefWorks.

The online-only Bibliographie de Civilisation Médiévale (BCM) is a bibliography of books that can be searched together with or separately from the IMB. There is also an International Directory of Medievalists available alongside IMB. In addition the Brepolis Medieval Encyclopedias provide online access to 1) Europa Sacra, a directory based on two earlier works, 2) a major German-language print encyclopedia, Lexikon des Mittelalters (or LexMA), and 3) an online-only supplement, International Encyclopaedia for the Middle Ages. Citations in the IMB and BCM link to articles in the encyclopedias, which in turn link to citations in the IMB and BCM.


There is extensive online help within the database. Click on the "Q" and "I" icons in the lower right hand side of the opening screen. On subsequent screens, the "Q" icon provides screen-specific help.

For help using these indexes see: How do I find an article on my topic?

Dates covered

1967 to date.

Updating frequency

The database is updated at least annually.


Articles published in periodicals (journals) and in miscellany volumes (conference proceedings, collected essays, Festschriften and exhibition catalogues) published world wide, scholarly books, three multi-volume reference works, and newly written encyclopedia articles.

Type of coverage

Citations only for IMB and BCM; full-text encyclopedia entries and directory.information.

Print counterpart or
related resources

International medieval bibliography (1967-94), International medieval bibliography on CD-ROM (1967-94), International Directory of Medievalists (ongoing), Lexikon des Mittelalters (1977-99), Konrad Eubel's Hierarchia catholica medii aevi, sive Summorum pontificum, S. R. E. cardinalium, ecclesiarum antistitum series ab anno 1198 usque ad annum perducta e documentis tabularii praesertim Vaticani (1913-67), and Gams' Series episcoporum Ecclesiae catholicae, quotquot innotuerunt a beato Petro apostolo (1957).

Producer/content provider

University of Leeds (IMB), Artemis-Verlag (LexMA), Brepols

Vendor/electronic presentation provider


Supplementary Subject(s)