Marguerite Georges was born Marguerite-Josephine Weimer in Bayeux, the daughter of a German employed in the theatre orchestra in Amiens.

She debuted on stage in 1802 at the age of fifteen at the Théâtre Français in Paris; she was made sociétaire in 1804.

[4] She toured Europe in 1812–1813, during which she performed at the Royal Dramatic Theatre in Stockholm and Dresden.

She was active at the Théatre Français in 1813–1818, at the Odéon Theatre and in 1831–49 at the Théâtre de la Porte Saint-Martin.

Her affair with Wellington is supposed to have taken place in 1814, and would make her one of two women known to have shared the two opponents' beds, the other one being Giuseppina Grassini.