SMS Baden was a Bayern-class dreadnought battleship of the German Imperial Navy built during World War I. Launched in October 1915 and completed in March 1917, she was the last battleship completed for use in the war; two of her sisters—Sachsen and Württemberg—were incomplete when the war ended. The ship mounted eight 38-centimeter (15 in) guns in four twin turrets, displaced 32,200 metric tons (31,700 long tons; 35,500 short tons) at full combat load, and had a top speed of 21 knots (39 km/h; 24 mph). Along with her sister Bayern, Baden was the largest and most powerfully armed battleship built by the Imperial Navy.
Upon commissioning into the High Seas Fleet, Baden was made the fleet flagship, replacing Friedrich der Grosse. Baden saw little action during her short career; the only major sortie in April 1918 ended without any combat. Following the German collapse in November 1918, Baden was interned with the majority of the High Seas Fleet at Scapa Flow by the British Royal Navy. On 21 June 1919, Rear Admiral Ludwig von Reuter ordered the scuttling of the fleet. However, British sailors in the harbor managed to board Baden and beach her to prevent her sinking. The ship was refloated, thoroughly examined, and eventually sunk in extensive gunnery testing by the Royal Navy in 1921. wiki