Burgundy 1728. Old count Antoine d'Eon is overjoyed. His daughter-in-law has finally given birth to a boy and he will at long last be able to transmit his inheritance to his son Pascal. At least this is what he thinks, for Pascal has concealed from his father the fact that his son was ... a daughter, his eighth daughter! Well, enough is enough and Geneviève has no other choice but become a boy first, then a soldier and even the special envoy of Louis XV, King of France, to Catherine II, the Czarina of Russia.
| Directing | Jacqueline Audry | Director |
| Writing | Ennio De Concini | Writer |
| Writing | Jacques Laurent | Writer |
| Writing | Pierre Laroche | Writer |
| Writing | Jacques Rémy | Writer |
| Writing | Vittorio Nino Novarese | Writer |
| Art | Alexandre Trauner | Production Design |
| Sound | Carlo Rustichelli | Original Music Composer |
| Editing | Yvonne Martin | Editor |
| Camera | Henri Alekan | Director of Photography |
| Art | Maurice Colasson | Production Design |
| Production | René Chevrier | Producer |
| Editing | Dolores Tamburini | Editor |
| Production | Eugène Tucherer | Producer |
| Costume & Make-Up | Giorgio Hermann | Costume Design |
| Production | Alfredo De Laurentiis | Production Manager |
| Camera | Marcel Grignon | Director of Photography |
| Art | Franco Bottari | Set Decoration |
| Costume & Make-Up | Rosine Delamare | Costume Design |
| Production | Alfredo Guarini | Producer |
| Directing | Serge Witta | Assistant Director |
| Directing | Rina Macrelli | Assistant Director |
