Rosing was the daughter of the well known acting coupleMichael and Johanne Rosing. Rosing was active at the Royal Danish Theatre in Copenhagen between 1802 and 1811, and described as a personification of the new neo-Classical ideal of the time. Formally employed as a chorist, she achieved such great success as an actor that she was given one leading role after another from the beginning of her debut. She was a controversial artist with her androgynous appearance, and often played boys' breeches roles. Her intelligence and original way of interpreting the often shallowroles she was given was highly debated. She remained a chorist in name, which was frustrating for her, and in 1811, she suffered a complete breakdown. The cause of death is given as cramps.