York Minster has the largest area of surviving medieval stained glass in one English building.
York Minster contains an exceptional concentration of medieval glass made from the twelfth through the fifteenth centuries. Its windows range from early fragments to enormous late-medieval compositions, documenting changing styles, subjects, and technical practices over several hundred years.
The Great East Window is the best-known example, but the cathedral’s importance comes from the combined area and variety of its surviving glass. The Five Sisters Window, the West Window, and numerous smaller windows contribute to the collection. York’s glass also survived despite damage, weathering, religious change, and later restoration.
Claims about “largest” can vary when they refer to a single window, a group of windows, or the total surviving area. York Minster’s distinction concerns the overall quantity of medieval stained glass preserved within one English building, not necessarily the largest individual window in the world.