Astrology is the art of predicting events on earth as well as human character and disposition from the movements of the planets and fixed stars. Medieval astrology encompassed both general concepts of celestial influence, and the technical art of making predictions with horoscopes, symbolic maps of the heavens at particular moments and places constructed from astronomical information. The scientific foundations of the art were developed in ancient Greece, largely lost in early medieval Europe and recovered by the Latin West from Arabic sources in the 12th and 13th centuries. Late medieval astrological images were successfully Christianized and were adapted to particular contexts, acquired local meanings and changed over time....
William M. Voelkle
Portable altar–reliquary (New York, Morgan Lib.), made c. 1156 for the Stavelot Abbey in the Ardennes, Belgium and decorated with both Mosan and Byzantine enamels (see fig.). The reliquary is named after the Benedictine abbey headed by