I went to Montfort L’Amoury yesterday and took pictures of the church. The windows are classified as historical monuments. They were donated to the church by wealthy patrons starting around 1400. The windows were made in Italy and carefully transported to the church. As you walk around the church you can see nearly 400 years of stained glass window-making as the windows were horribly expensive and added one by one.
Here is the first window, and down at the bottom you can see a family praying. They are the donors of this window – added for posterity. (In most all the windows the donors are present – either as a character in the scene or at the bottom pictured in prayer. To recognise them, look for the figures in black – as black was the most expensive color to make, and only the very wealthy could afford it.)