Frederick Francis IV, Grand Duke of Mecklenburg-Schwerin (d. 1946)
Frederick Francis IV (Friedrich Franz Michael; 9 April 1882 – 17 November 1945) was the last Grand Duke of Mecklenburg-Schwerin and regent of Mecklenburg-Strelitz. He inherited the throne when he was fifteen years old in 1897 and was forced to renounce it in 1918.