Government of Austria commencement of the Austria Constitution on 10 November 1920 became first Federal Chancellor of Austria. Mayr and his successors proceeded with the support of the Christian Social Party and the Greater German nationalists, while the Social Democrats remained in opposition. From 5 March 1933 onwards, the Christian Social chancellor Engelbert Dollfuß continued to rule by suppressing the National Council parliament. In the course of the Austrian Civil War he brought down the opposition, and on 1 May 1934 implemented the authoritarian Federal State of Austria. All political parties were banned, except for the Fatherland's Front supporting Dollfuß' Austrofascist government. The
Government of Austria Party (CS) and German Nationalists (Greater Germans)—according to the "Proporz" doctrine. As acting executive body it remained in office until the Constitutional Assembly of the Austrian First Republic on 15 March 1919 elected Renner's second cabinet, a coalition government of Social Democratic and Christian Social ministers. State Chancellor Renner had signed the Treaty of Saint-Germain-en-Laye, whereafter his cabinet retired en bloc. Re-elected by the Constitutional Assembly on 17 October 1919, his third cabinet was finally overturned with the break-up of the SPÖ-CS coalition on 7 July 1920. Renner was succeeded by the Christian Social politician Michael Mayr, who at the