Duchess Sophia Frederica of Mecklenburg-Schwerin
Sophia Frederica of Mecklenburg- Schwerin( 24 August 1758 – 29 November 1794) was a Princess and Duchess of Mecklenburg- Schwerin, and by marriage Hereditary Princess of Denmark and Norway.
Dorothea of Denmark, Duchess of Prussia
Dorothea of Denmark (1 August 1504 – 11 April 1547), was a Duchess of Prussia by marriage to Duke Albert, Duke of Prussia.
She was the daughter of King Frederick I of Denmark and Anna of Brandenburg.
Dorothea of Denmark, Duchess of Mecklenburg
Dorothea of Denmark (1528 – 11 November 1575), was a Danish princess and a Duchess consort of Mecklenburg.
She was the daughter of king Frederick I of Denmark and Sophie of Pomerania.
She was married to Christopher, Duke of Mecklenburg-Gadebusch in 1573.
Dorothea was raised with her maternal grand parents in Pomerania as a child, but spent her adult life at the Danish royal court and with her mother in Kiel.
She took part in the entourage of her niece Anne of Denmark at the latter's wedding in Saxony in 1548, but otherwise she lived a discreet life.
She died two years after her marriage, and her sister Elizabeth of Denmark had a monument erected over her grave.
Christine of Mecklenburg-Güstrow
Christine of Mecklenburg- Güstrow( 14 August 1663 – 3 August 1749) was a German noblewoman of the House of Mecklenburg and by marriage Countess of Stolberg- Gedern.
Born in Güstrow, she was the sixth of eleven children born from the marriage of Gustav Adolph, Duke of Mecklenburg- Güstrow and Magdalene Sibylle of Holstein- Gottorp.
From her ten older and younger siblings, eight survived to adulthood: Marie( by marriage Duchess of Mecklenburg- Strelitz), Magdalene, Sophie( by marriage Duchess of Württemberg- Oels), Charles, Hereditary Prince of Mecklenburg- Güstrow, Hedwig( by marriage Duchess of Saxe- Merseburg- Zörbig), Louise( by marriage Queen of Denmark and Norway), Elisabeth( by marriage Duchess of Saxe- Merseburg- Spremberg) and Augusta.
She was the three- times great- grandmother of Queen Victoria of the United Kingdom.
Maria of Mecklenburg-Schwerin
Marie of Mecklenburg, born sometime between 1363 and 1367, but probably by 1365, dead after 13 May 1402, was a duchess of Pomerania.
She was the daughter of Duke Henry III, Duke of Mecklenburg( death 1383) and the Danish princess Ingeborg of Denmark, Duchess of Mecklenburg( death 1370), was Duchess of Pomerania.
Christopher, Duke of Mecklenburg
Christopher, Duke of Mecklenburg-Gadebusch (30 July 1537 – 4 March 1592) was a son of Albrecht VII, Duke of Mecklenburg.
He was Duke of Mecklenburg-Gadebusch, as well as administrator of Ratzeburg and of the Commandery of Mirow.
Ogawa Mataji
Viscount was a general in the early Imperial Japanese Army.
He was also the father- in- law of Field Marshal Gen Sugiyama.
Elizabeth of Denmark, Duchess of Mecklenburg
Elisabeth of Denmark (14 October 1524 – 15 October 1586) was Danish princess and a Duchess of Mecklenburg-Schwerin and later of Mecklenburg-Güstrow through marriage.
She was the elder daughter of King Frederick I of Denmark and his second spouse Sophie of Pomerania.
Dorothea of Brunswick-Lüneburg
Dorothea of Brunswick-Lüneburg (1 January 1570 – 15 August 1649) was a daughter of Duke William "the younger" of Brunswick-Lüneburg and his wife, Dorothea of Denmark, Duchess of Brunswick-Lüneburg.
She married Count Palatine Charles I of Zweibrücken-Birkenfeld.
They had four children:
Hedwig of Mecklenburg-Güstrow
Hedwig of Mecklenburg- Güstrow(" Hedwig Eleonore"; 12 January 1666 – 9 August 1735), was a German noblewoman member of the House of Mecklenburg and by marriage Duchess of Saxe- Merseburg- Zörbig.
Born in Güstrow, she was the eighth of eleven children born from the marriage of Gustav Adolph, Duke of Mecklenburg- Güstrow and Magdalene Sibylle of Holstein- Gottorp.
From her ten older and younger siblings, eight survive adulthood: Marie( by marriage Duchess of Mecklenburg- Strelitz), Magdalene, Sophie( by marriage Duchess of Württemberg- Oels), Christine( by marriage Countess of Stolberg- Gedern), Charles, Hereditary Prince of Mecklenburg- Güstrow, Louise( by marriage Queen of Denmark and Norway), Elisabeth( by marriage Duchess of Saxe- Merseburg- Spremberg) and Augusta.

Question: Who is Dorothea Of Denmark, Duchess Of Mecklenburg's father-in-law?