A couple of years ago I spent a few days in the Loire Valley. One day, we ended our tour in Richelieu, and when we were back to our hotel in Amboise, we stumbled upon Champigny-sur-Veude. The road passed just ahead of their Saint Chapelle and as we were so struck we decided to stop to take a look. As it was around 8pm, we were unable to enter as it was closed. We had to be content with the outside. What is most striking is its tower, which is definitely similar to that of the Saint Chapelle in Paris. From what I've read, the inside is very nice with its 11 beautiful stained glass windows. Anyway, if you are there try to visit and try to get inside to see the interiors.