Preaching of Indulgences from the Roman Hospital Sancti Spiritus in Saxia in Poland, Lithuania, Silesia and Prussia in the Fifteenth and Early Sixteenth Centuries

The Order of the Holy Spirit conducted a campaign of preaching the indulgences that spread throughout Europe, combined with a collection of alms for the Roman Hospital of the Holy Spirit. From the fifteenth century onwards, special commissaries preaching indulgences also reached Poland, Lithuania, Silesia and Prussia. This article presents the activities of the commissaries in areas on the basis of the surviving source material, in particular the letters of indulgence they issued.