sentences:  Since he was unwed and had no children, his sister took over the task of governing.She was not, however, allowed to succeed her brother in his capacity of Count Palatine (Duke) of Zweibrücken.Thus, the County Palatine in Germany passed to the sideline of Palatinate-Kleeburg, with Karl XII's first successor here being his cousin, named Gustav Samuel Leopold, an officer in the Emperor's service who may have converted to Catholicism for his master's sake.