Plaster-of-Paris is an appropriate name for gypsum. I think that one of the main sites for gypsum in Paris was the Monmartre section up on a hillside above Paris.
When I visited Paris, I went up the steep streets and stairs to Monmartre. The highlight is a beautiful church made from gypsum. I believe it took about 40 years to build. It's called Sacred Heart Church. It is just beautiful and shines brilliant white in the sunshine or under the lights at night.
Many artist frequented this area and I'm sure many of them used gypsum for their art.