Europa sacra-- online

Offers unrivalled coverage of medieval Church prelates, information on all 1300 medieval bishoprics, archdioceses and patriarchates under obedience to Rome. As of 2003, it provides prosopographical information on 18,507 bishops, archbishops and patriarchs. Gradually more recent prosopographical works on members of religious orders and data on secular clergy supplied by nationally-based prosopographical projects will be added.