Inspiration behind Poulenc’s Opera: 16 guillotined nuns canonized by Pope Francis
Jerusalem Post
On July 17, 1794, at 8:00 p.m., the nuns were executed in the Place du Trône, today’s Place de la Nation, after being convicted of hostility to the French Revolution.
https://www.jpost.com/christianworld/christianity-news/article-834248