Grand Duchy of Mecklenburg-Schwerin
Frederick Louis of Mecklenburg-Schwerin (13 June 1778 – 29 November 1819) was a hereditary prince of the Grand Duchy of Mecklenburg-Schwerin, one of the constituent states of the German Confederation. He was the son of Frederick Francis I, Grand Duke of Mecklenburg-Schwerin, and of Princess Louise of Saxe-Gotha-Altenburg.