[1][2][3] The previous three and a half years had seen Germany governed by a series of conservative cabinets, variably including the radical nationalist German National People's Party (DNVP).

The fourth Marx cabinet collapsed in February 1928 due to a dispute over education policy, with new elections called for May.

Social Democrat Hermann Müller, who had previously served as Chancellor briefly in 1920, was charged with forming a new cabinet.

It took until ten months later in April 1929 for a coalition agreement to be signed and the Centre to officially enter cabinet.

Its fall in March 1930 and marked the end of the parliamentary system and the beginning of the presidential cabinets.