Frederick Louis, Hereditary Grand Duke 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.
Duke Louis of Mecklenburg-Schwerin
Duke Louis of Mecklenburg- Schwerin( 6 August 172512 September 1778) was heir to the Dukedom of Mecklenburg- Schwerin from 1756 to his death.
He was also the father of the first Grand Duke of Mecklenburg- Schwerin Frederick Francis I
Princess Alexandrine of Prussia (1803–1892)
Princess Alexandrine of Prussia( 23 February 1803 – 21 April 1892) was Grand Duchess of Mecklenburg- Schwerin by marriage to Paul Frederick, Grand Duke of Mecklenburg- Schwerin.
She was the daughter of Frederick William III of Prussia and Louise of Mecklenburg- Strelitz.
Duchess Marie Louise of Mecklenburg-Schwerin
Duchess Marie Louise of Mecklenburg- Schwerin( 31 March 180326 October 1862) was daughter of Frederick Louis, Hereditary Grand Duke of Mecklenburg- Schwerin and consort of Georg, Duke of Saxe- Altenburg.
Friedrich Franz, Hereditary Grand Duke of Mecklenburg-Schwerin
Friedrich Franz, Hereditary Grand Duke of Mecklenburg- Schwerin( 22 April 1910 – 31 July 2001) was the heir apparent to the throne of Mecklenburg- Schwerin and a member of the Waffen- SS.
Duchess Louise Frederica of Württemberg
Duchess Louise Frederica of Württemberg (3 February 1722 – 2 August 1791) was a Duchess consort of Mecklenburg-Schwerin.
She was the daughter of Frederick Louis, Hereditary Prince of Württemberg and Margravine Henrietta Maria of Brandenburg-Schwedt.
She married Frederick II, Duke of Mecklenburg on 2 March 1746.
She had four children, who died young.
Princess Augusta Reuss of Köstritz
Princess Augusta Reuss, Junior Line( Auguste Reuss; 26 May 1822 – 3 March 1862) was Grand Duchess of Mecklenburg- Schwerin as the first spouse of Frederick Francis II, Grand Duke of Mecklenburg- Schwerin.
Karin Elisabeth von Schaper
Karin Elisabeth, Hereditary Grand Duchess of Mecklenburg- Schwerin( née" von Schaper", Karin Elisabeth Henriette Lori Gudela; 31 January 1920 – 26 January 2012) was a member by marriage of the House of Mecklenburg- Schwerin.
She was the widow of Friedrich Franz, Hereditary Grand Duke of Mecklenburg- Schwerin.
Princess Louise of Saxe-Gotha-Altenburg (1756–1808)
Princess Louise of Saxe-Gotha-Altenburg, (born 9 March 1756 in Roda, Duchy of Saxe-Gotha-Altenburg; died 1 January 1808 at Schloss Ludwigslust in Ludwigslust, Duchy of Mecklenburg-Schwerin) was Duchess consort of Mecklenburg-Schwerin through her marriage to Frederick Francis I, Grand Duke of Mecklenburg, Louise was also a member of the House of Mecklenburg.
Duke William of Mecklenburg-Schwerin
Willem of Mecklenburg-Schwerin (Ludwigsburg, 5 March 1827 - Heidelberg, 28 July 1879), was the second son of Hereditary Grand Duke Paul Friedrich of Mecklenburg and his wife Princess Alexandrine of Prussia, daughter of Frederick William III.

Question: Where did Frederick Louis, Hereditary Grand Duke Of Mecklenburg-Schwerin's mother die?