Constantinian Excerpts
The Constantinian Excerpts was a 53-volume Greek anthology of excerpts from at least 25 historians. It was commissioned by the Byzantine emperor Constantine VII (945–959), but probably not completed until after his death. Today only four volumes survive in various states of completeness. The titles of 21 other volumes are known. The volumes are typically known by their Latin titles. The title of the whole, Excerpts, is also conventional.