[3][4] Marie Victoire is an opera with a large number of characters, distinguished for the «frequent recourse to direct citations of revolutionary songs and court dances» and for a «vocal style that associates to the classical lyric singing the declamation and the arioso without veristic excesses».

[5] Marie Victoire is scored for the following instruments:[6] piccolo, 2 flutes, 2 oboes, English horn, 2 clarinets, bass clarinet, bassoons, horns, trumpets, trombones, tam-tam, timpani, harp, bell, strings.

Suddenly comes the news that Robespierre is dead: the life of the prisoners is unexpectedly spared.

Clorivière abused Marie, who has never stopped thinking of her husband and now lives in poverty with a five-year-old child, Georges.

Maurice, pressed by the audience which listened to the story, forgives Marie, but refuses to reveal who is the real assaulter.

Clorivière accuses himself then seizes a pistol and takes his own life, singing the same song, disliked by the revolutionaries, that Marie sang at the beginning of the opera.