17 July -- The Carmelite Martyrs of Compiegne
On this day in 1794 all the nuns of the Carmelite monastery of Compiegne were guillotined by the revolutionary French republicans. They offered their lives for France and her liberation from the terror. They were the last executed under that regime and the terror soon ended.
And even more here.
William Bush's "To Quell the Terror" is probably the most complete treatment available.