Maria Thins
Maria Thins( c. 1593 – 27 December 1680) was the mother- in- law of Johannes Vermeer and a member of the Gouda Thins family.
Priscilla Pointer
Priscilla Marie Pointer( born May 18, 1924) is an American stage, film and television character actress.
She began her career in the theater, including productions on Broadway.
Later, Pointer moved to Hollywood to act in films and on television.
She is the mother of Amy Irving, therefore making her the former mother- in- law of filmmakers Steven Spielberg and Bruno Barreto and the mother- in- law of documentary filmmaker Kenneth Bowser, Jr.
Countess Palatine Magdalene Catherine of Zweibrücken
Magdalena Catherine, Countess Palatine of Zweibrücken( 26 April 1607, Zweibrücken – 20 January 1648, Strasbourg) was a Countess Palatine of Zweibrücken by birth and by marriage Duchess and Countess Palatine of Birkenfeld.
Otto Henry, Count Palatine of Sulzbach
Otto Henry of Sulzbach( 22 July 1556 – 29 August 1604) was the Count Palatine of Sulzbach from 1569 until 1604.
Gebhard III of Sulzbach
Count Gebhard III of Sulzbach( also:" Gebhard II of Sulzbach"; born around 1114; † 28.
October 1188) came from the noble Counts of Sulzbach and was a son of Count Berengar II of Sulzbach and his second wife, Adelheid of Dießen- Wolfratshausen.
Frederick Michael, Count Palatine of Zweibrücken
Frederick Michael, Count Palatine of Zweibrücken-Birkenfeld (Ribeauvillé, Alsace, 27 February 1724 – 15 August 1767 in Schwetzingen) was a member of the Wittelsbach dynasty.
He was the son of Christian III of Palatinate-Zweibrücken and Caroline of Nassau-Saarbrücken and a member of the House of Palatinate-Zweibrücken-Birkenfeld, a branch of the House of Wittelsbach.
He was the father of the Bavarian King Maximilian I Joseph.
Hedwig of the Palatinate-Sulzbach
Marie Hedwig Auguste of Sulzbach( born: 15 April 1650 in Sulzbach; died: 23 November 1681 in Hamburg) was a Countess Palatine of Sulzbach by birth and by marriage, Archduchess of Austria and by her second marriage, Duchess of Saxe- Lauenburg.
Berengar II of Sulzbach
Count Berengar II of Sulzbach( c. 1080–83 – 3 December 1125), sometimes known as Berengar I of Sulzbach, was Count of Sulzbach in Bavaria.
Berengar was a leader of the reform party.
He sided with Pope Gregory VII during the Investiture Controversy in opposition to Henry IV, Holy Roman Emperor, and supported Henry V in his successful rebellion against his father.
He is known as the founder of several abbeys.
Countess Palatine Maria Franziska of Sulzbach
Countess Palatine Maria Francisca of Sulzbach ("Maria Franziska, Pfalzgräfin von Sulzbach"; 15 June 1724 – 15 November 1794), was a Countess Palatine of Zweibrücken-Birkenfeld by marriage to Frederick Michael, Count Palatine of Zweibrücken-Birkenfeld.
Born in Schwetzingen, she was the fifth child of Joseph Karl, Count Palatine of Sulzbach and Countess Palatine Elizabeth Auguste Sophie of Neuburg.
From her six siblings, only she and two older sisters survive adulthood: Elisabeth Auguste and Maria Anna.
Countess Palatine Maria Anna of Zweibrücken-Birkenfeld
Countess Palatine Maria Anna of Zweibrücken-Birkenfeld-Bischweiler (18 July 1753 – 4 February 1824) was Countess Palatine of Birkenfeld-Gelnhausen and Duchess in Bavaria, through her marriage to Duke Wilhelm in Bavaria.
Maria Anna was a great-grandmother of Empress Elisabeth of Austria through his son Duke Pius August in Bavaria

Question: Who is the mother-in-law of Countess Palatine Maria Franziska Of Sulzbach?
Answer: Caroline of Nassau-Saarbrücken