From A Bibliography of Alexandre Dumas père by Frank Wild Reed: A drama in three tableaux, after Alexandre Dumas, by Jean Berleux.
It is probable that this is based on the "Murat" of the "Crimes Célèbres" and of the "Salle d'Armes."
Original edition : Paris, Ollendorff. 1890. (Only 400 copies were printed.)
Reference :—
"Le Livre Moderne," Xo. 5, 1890, page 348.