Complex sentence: Examples of his skill can still be seen in the Metz and Saint-Nicolas-de-Port cathedrals, while windows from Flavigny-sur-Moselle have either dispersed to museums or lost.
Split into simpler sentences: Examples of his skills are still in place in the Saint-Nicolas-de-Port Basilica, and the Metz Cathedral. Windows from Flavigny-sur-Moselle have either dispersed to museums or lost.