The Republic of Mainz was the first democratic state in the current German territory. It was in Mainz. It was made because of the French Revolutionary Wars. It lasted from March to July 1793.
References
↑The short-lived republic is often ignored in identifying the "first German democracy", in favour of the Weimar Republic; e.g. "the failure of the first German democracy after the First World War (the Weimar Republic)..." (Peter J. Burnell, Democracy Assistance: international co-operation for democratization 2000:131), or Ch. 3. 'The First Attempt at Democracy, 1918–1933', in Michael Balfour, West Germany: a contemporary history, 1982:60
Störkel, Arno (1994). The Defenders of Mayence in 1792: A Portrait of a Small European Army at the Outbreak of the French Revolutionary Wars. Canberra: The University of New South Wales.