[1] Her father was a merchant who converted from the Jewish faith in 1882 together with his family.

Twardowski became a leading sculptor after training with Josef Breitner and Charles van der Stappen.

She joined the Austrian Association of Women Artists (VBKÖ) which was founded in 1910 and that year she was chosen to create a funerary monument for her teacher Charles van der Stappen.

[2] Twardowski took her own life in Munich in 1942 after receiving orders to join other Jews[2] during the time of the Holocaust.

[3] Her work was included in the 2019 exhibition City Of Women: Female artists in Vienna from 1900 to 1938 at the Österreichische Galerie Belvedere.