The ship also saw duty in the Baltic Sea, as part of the support force for the Battle of the Gulf of Riga in 1915. She returned to the Baltic as the core of an expeditionary force to aid the White Finns in the Finnish Civil War in 1918, but ran aground shortly after arriving in the area. Significant portions of her armor and all her main guns had to be removed before she could be refloated. The damage done by the grounding was deemed too severe to justify repairs and "Rheinland" was decommissioned to be used as a barracks ship for the remainder of the war. In 1919, following the scuttling of the German fleet in Scapa Flow, "Rheinland" was ceded to the Allies who, in turn, sold the vessel to ship-breakers in the Netherlands. The ship was eventually broken up for scrap metal starting in 1920. Her bell is on display at the Military History Museum of the Bundeswehr in Dresden.