 On 17 September 1909 , Kaiser Barbarossa was decommissioned and assigned to the Reserve Division in the Baltic Sea . By that time , the new dreadnought battleships , which rendered Kaiser Barbarossa and her sister ships thoroughly obsolete , were beginning to come into service with the fleet . In early 1910 , Kaiser Barbarossa was assigned to the Training Squadron , which operated in the Baltic in April . She was reactivated to participate in the autumn maneuvers that year in the provisional III Squadron ; after the conclusion of the exercises on 10 September , she was placed back in reserve . More modernization work was done at the Kaiserliche Werft in Kiel . From 31 July to 15 September , she was reactivated again to take part in the autumn maneuvers in the III Squadron . She thereafter returned to the Reserve Division in early 1912 . 
