Christian Louis I, Duke of Mecklenburg
Christian Louis I, Duke of Mecklenburg- Schwerin( 1 December 1623 in Schwerin – 21 June 1692 in The Hague) was a reigning Duke of Mecklenburg- Schwerin.
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.
Frederick II, Duke of Mecklenburg-Schwerin
Frederick II, Duke of Mecklenburg- Schwerin, called" the Pious"( 9 November 171721 April 1785) was Duke of Mecklenburg- Schwerin from 1756 until his death.
Frederick William, Duke of Mecklenburg-Schwerin
Frederick William I, Duke of Mecklenburg-Schwerin (28 March 1675 – 31 July 1713) was the reigning Duke of Mecklenburg in the Mecklenburg-Schwerin portion of the duchy of Mecklenburg from 1692 until 1713.
Frederick William was the eldest son of Prince Frederick, Duke of Mecklenburg-Grabow, and Christine Wilhelmine of Hesse-Homburg (1653–1722).
He was a nephew of the childless
Duke Christian Ludwig I of Mecklenburg.
Frederick Wiliam succeeded his uncle on 21 June 1692 as regent of the Schwerin portion of the duchy of Mecklenburg.
After the extinction of the Mecklenburg-Güstrow line of the dynasty with the death of Duke Gustav Adolph in 1695, Frederick William became embroiled in a violent succession dispute with his uncle Adolf Frederick II that escalated quickly.
It brought the country to the brink of civil war and was settled only through the intervention of foreign powers.
the king of Denmark and Norway, Frederick IV, gave up the inheritance request for the Mecklenburg-Güstrow Principal in exchange for the Duke's support for Denmark-Norway in the Great Northern War.
The dispute was ended in 1701 by the Hamburg Compromise.
Mecklenburg was again split into two parts with limited autonomy.
The two sub-principalities, Mecklenburg-Strelitz and Mecklenburg-Schwerin, existed until 1918.
The Compromise also introduced the right of succession of the first-born to the dynasty.
In 1708, Frederick William introduced the "Consumption and Tax Statute" to overcome the fiscal consequences of the Thirty Years' War and the Great Northern War.
In addition to the taxation of knights and the clergy, this law included the abolition of serfdom, freeing farmers from dependence on their landlords.
The former peasants could lease their land and forced labor was to be replaced by work for a salary.
This created a sharp conflict between the duke and the landed estates.
Frederick William married Sophie Charlotte of Hesse-Kassel on 2 January 1704 in Kassel.
She was a daughter of Count Charles I of Hesse-Kassel.
The couple had no children.
Frederick William had numerous mistresses, with whom he had at least nine children, including:
A lady named Frederika Wilhelmina was born 1702 in Boitzenburg and died 1748 in Schwerin.
In 1719, she married 1719 Hermann Christian von Wolffradt (died in 1723 in Dömitz)).
She was a mistress of Duke Karl Leopold of Mecklenburg.
Whether she was an illegitimate daughter of Frederick William is a point of controversy in the historical literature.
Frederick William died in Mainz on 31 July 1713 on his return from Schlangenbad.
His wife Sofia Charlotte took up her dower in Bützow, where she died.
She was buried beside her husband in the crypt of the newly built Schelfkirche St. Nikolai in Schwerin.
Magnus II, Duke of Mecklenburg
Magnus II, Duke of Mecklenburg- Schwerin and Güstrow( 1441 – 20 November 1503) was duke of Mecklenburg- Schwerin from 1477 until his death.
Christine Wilhelmine of Hesse-Homburg
Landgravine Christine Wilhelmine of Hesse-Homburg (30 June 1653, in Bingenheim – 16 May 1722, in Grabow) was a German noblewoman.
She was the eldest daughter of William Christoph, Landgrave of Hesse-Homburg and his first wife Sophia Eleonore of Hesse-Darmstadt.
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.
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.
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.

Question: Who is the maternal grandfather of Frederick William, Duke Of Mecklenburg-Schwerin?