Yes, a window — an Anglo-Saxon window to be precise. An article from Newbury Today reported that workmen at St Andrews Church in Boxford (North Wessex Downs, Berkshire) have uncovered a pre-1066 Saxon window. The little window is a frame with a hinged wooden panel. The frame is made from a single piece of hewn timber. Here is the original article.
I get excited at this kind of thing because it helps me visualize my persona’s late 11th century farm. For instance, I had no idea that frames might be made out of a single piece of wood. Or that the coverings (what I think of as a shutter) was hinged from the inside and simply swung shut and latched. How cool is that?