ELIZABETH CLELAND: The stained glass in this gallery really comes as a wonderful surprise. The windows were designed and made by a glassmaker called Valentin Bousch…. one of the most important and influential glassmakers of the Northern Renaissance.… The windows date from the 1530s. Earlier designs tended to be constricted within narrow, vertical panels. But in contrast, Bousch looked at these designs almost as if he's creating an enormous painting. Monumental scale figures and wonderful background vista landscapes are created over one main pictorial plane. Bousch was also innovative with his technique. The large areas of color are made from colored glass, which were cut to the shapes which Bousch wanted to represent. They're held in place with the thicker black lead lines. The details were added with silver stain, which was painted onto the glass panels and then fired.