Schwarzburg (municipality)"Schwarzburg is a municipality in the valley of the Schwarza (German: Schwarzatal) in the district Saalfeld-Rudolstadt in Thuringia, Germany. It was first mentioned in 1071 as Swartzinburg. The (now-ruined) castle was from the 12th century the seat of the Counts of Schwarzburg. Then Rudolstadt became seat of the new line of Schwarzburg-Rudolstadt. On August 11, 1919, while on holiday in Schwarzburg, Friedrich Ebert—the first Reichspräsident of Germany—signed the Weimar constitution, the first democratic constitution of Germany." - (en.wikipedia.org 22.05.2020) Saalfeld-Rudolstadt Schloss Schwarzburg