She was the daughter of the lawyer and social democrat Jean-Pierre Probst, and graduated in law at the university.
When she was to pass the qualifications as a lawyer in 1927, she was initially refused because of her gender.
After protests from her male colleagues, however, she was allowed to pass, which is regarded as a great victory in the history of gender equality in Luxembourg.
As a lawyer, she often defended females and handled divorce cases.
In 1939, she proved that the common practice to fire a female teacher after marriage was illegal.