Between 1976 and 1977 she was imprisoned in JVA Stuttgart along with Baader, Gudrun Ensslin, Ulrike Meinhof, Jan-Carl Raspe, Irmgard Möller and Brigitte Mohnhaupt, where she took part in several hunger strikes. During the German Autumn of late 1977, second-generation members of the RAF tried in vain to break Schubert and other RAF members out of prison. After the suicide of top RAF members, including Baader and Esslin, on the night of 18 October 1977, Schubert hanged herself in her cell on 12 November 1977.