The following link showed up in my newsfeed this morning and I thought it might be of interest to some here as an adjunct to
The Scarlet Pimpernel.
Poulenc: Dialogues of the Carmelites
The opera tells the story of the Martyrs of Compiègne, Carmelite nuns who refused to renounce their vocations as mandated by the anti-clerical revolutionary government and were guillotined (toward the end of the Terror, an error in the link blurb).