in which sea was it laid down?
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what is sms baden? It was a dreadnought battleship. who or what was responsible for its design? The Germans. what was its service history? It was ordered under the provisional name "Ersatz Wörth" in 1912, the ship was laid down on 20 December 1913 and launched on 30 October 1915.
wiki:5031741
SMS Baden [SEP] Service history
"Baden" was ordered under the provisional name "Ersatz Wörth" in 1912, under the fourth and final Naval Law, which was passed that year. Construction began at the Schichau-Werke dockyard in Danzig under construction number 913. The ship was laid down on 20 December 1913 and launched on 30 October 1915. Work was delayed considerably by the start of World War I, first by the Russian advance into East Prussia that threatened the shipyards in Danzig and was checked at the Battle of Tannenberg. Once work in the yards resumed, resources were diverted to complete the battlecruiser and the ex-Russian light cruisers and .