Prosopographie der Mittelbyzantinischen ZeitThe Prosopographie der mittelbyzantinischen Zeit (PMBZ) is a comprehensive biographical dictionary for the Byzantine Empire in the early Medieval Period (641-1025 AD) documenting more than 21,000 persons. PMBZ Online is based on the print edition of the Prosopographie der mittelbyzantinischen Zeit (1998, 2013). PMBZ documents all persons mentioned either by name or anonymously in the relevant Byzantine and non-Byzantine sources, and secondly all persons mentioned in the Byzantine sources both from Western Europe and from the Arabic and Slavonic areas, together with those from the Christian East.