Pohled do oken středověkých a raně novověkých domů v českém Slezsku

The article deals with the findings of medieval and post-medieval window glass from the Czech Silesia. Findings from archaeological excavations from the historic city center of Opava, but also from Ostrava, Krnov, Silesian castles and a number of church buildings will be presented. In addition to archeological data, historical paintings and written documents are important sources of knowledge, which record the activities of craftsmen and merchants, illuminate the organization of the glass trade and the process of spreading of window glass across wide social strata. The chemical composition of selected window panes was analysed, which has the potential to reveal the provenance of glass products. Two interesting finds will be presented in more detail: stained glass from the Church of St. Wenceslas belonging to the Dominican monastery and remains of a glazier‘s workshop from the Poultry Market in Opava.