Oh I found it
Marie-Jeanne Schellinckx .
The Xena of the Napoleonic Wars.
Marie-Jeanne Schellinckx was born in Ghent in 1757 and died in Menen in 1840. She worked as waitress/inn-keeper, together with her husband, and in 1792 together they enlisted in the "Legion des Belges et Liegeois". Marie-Jeanne fought at Jemappes where she receiving several saber cuts. She was also present at Arcole and Austerlitz where she was hit by a musketball in her thigh. Military surgeon then discovered that the wounded brave soldier actually was a woman ! Marie-Jeanne remained in the French army and fought at Jena. She was promoted to lieutenant and (some sources say in 1806, others in 1808) received Legion of Honor. In 1808 she left the army and Napoleon granted her yearly pension of 700 Francs.