The original Constitution of East Germany was promulgated on 7 October 1949. It was heavily based on the Weimar Constitution and nominally established the GDR as a liberal democratic republic. In 1968, the East German government adopted a new, fully Communist constitution that was based on Marxism–Leninism, political unitarism, and collective leadership. There were further amendments to the 1968 constitution in 1974. With the political events of 1989, there were attempts to draft a new constitution for East Germany, but these efforts never materialized due to the dissolution of East Germany and the accession of its states into the neighboring Federal Republic.

A Landtag is generally the legislative assembly or parliament of a federated state or other subnational self-governing entity in German-speaking nations. It is usually a unicameral assembly exercising legislative competence in non-federal matters.