- Bayeux Cathedral
Well, that is an interesting window. On a gothic cathedral. - Basilica di Santa Chiara
The basilica is from 1257. Made of white and red rock from Monte Subasio. - Cathedral
The Orvieto Cathedral was built in 1290-1591, probably designed by Lorenzo Maitani. - Convent of San Domenico
A gothic window by Bartolomeo di Pietro and Mariotto di Nardo (1411). With 21 m one of the tallest gothic windows. - Basilique Notre-Dame de Beaune
A magnificent stained glass window. But I have no idea how old it is. May be old, but my uneducated guess would say quite recent. - Bayeux Cathedral
Plenty of old windows in the cathedral as well... These are from 1260, showing the local bishops Exupère and Loup.