Giorgio Fedalto's La chiesa latina in oriente appeared in three volumes between 1973 and 1978. The first volume was a monograph on the Latin Church in the east, established as a result of the First Crusade and subsequent expeditions to the east and as a result of the missions of the thirteenth and fourteenth centuries. The second volume was a list of the Latin hierarchy of the Eastern Churches. The third published Venetian documents concerning relations with the east. A new edition of volume i, greatly expanded, appeared in 1981. Now we have a new and revised edition of volume ii. Its main purpose is to provide details of those who occupied the various sees. It excludes men who were titular holders of sees in partibus infidelium or schismaticorum, in other words those who had no intention or hope of residing in their sees, while the non-Latin episcopate appears in a massive, separate work by the same author: Hierarchia ecclesiastica orientalis (Padua 1988). The sees appear in alphabetical order. The entry for each see, after a brief historical and bibliographical note, gives the names of the patriarchs, archbishops or bishops (with, if appropriate, details of the religious orders to which they belonged), the occasion for their taking up office (for example, the death of the previous incumbent), the dates that they held office, and the source for the information. The book concludes with indices of persons and places and a list of dioceses arranged by patriarchates and/or archbishoprics. As with the Hierarchia catholica by Conrad Eubel and his successors, the main source is the registers of papal letters in the Vatican Archives, but Fedalto draws on a wider range of non-Vatican sources than the earlier work. Given the haphazard nature of the sources and the scattered secondary literature, an undertaking of this type cannot be expected to be definitive. However, the Hierarchia latina orientis is likely to prove a valuable supplement to the Hierarchia catholica and a useful work of reference.