Some Fragments of Medieval Glass

I came across these windows by accident recently, while sheltering from the rain. The coloured glass was saved when religious zealots destroyed the stained glass in what was then the Abbey church in Bristol, and incorporated into a new set of windows after World War II. I need to find out more about this glass, which I think is 14th or 15th century; it certainly has the humanity and character of Gothic art. Looking at it, I was reminded of the looting and destruction currently going on in Syria, the effects of which will be felt for centuries to come.