Only after the death of Franz Joseph in 1916 and the end of the monarchy in 1918 did the couple officially separate. In 1921 Elisabeth joined the Social Democratic Party, where she met Leopold Petznek from Bruck an der Leitha, then president of the audit office, at one of the election meetings. A teacher and a committed Social Democratic politician who became president of the Lower Austrian "Landtag" (state parliament) after the war, Petznek came from a modest background, but was highly cultivated. He was also married; his wife, with whom he had a son, was institutionalized at a psychiatric hospital in Mauer-Ohling, where she died on 9 June 1935.