Rupert of Palatinate-Simmern (1461–1507)
Rupert of Palatinate- Simmern( 16 October 1461 – 19 April 1507) was a German nobleman and clergyman of the house of Palatinate- Simmern.
From 1492 until his death he was the forty- fifth bishop of Regensburg as Rupert II.
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.
Rupert of Palatinate-Simmern (1420-1478)
Rupert of Palatinate- Simmern( 1420- 17 October 1478, Saverne) was a Roman Catholic clergyman and member of the Palatinate- Simmern family.
From 1440 to 1478 he was bishop of Strasbourg.
Anna Maria of the Palatinate
Maria of the Palatinate (24 July 1561 – 29 July 1589) was a Swedish princess and Duchess of Södermanland by marriage, the first spouse of the future King Charles IX of Sweden.
She died before he became king, and was therefore never queen.
Marian Shields Robinson
Marian Lois Robinson( née Shields; born July 29, 1937) is the mother of Michelle Obama, former First Lady of the United States, and Craig Robinson, a basketball executive, and the mother- in- law of former U.S. President Barack Obama.
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.
Eldon Howard
Eldon Howard was a British screenwriter.
She was the mother- in- law of Edward J. Danziger and wrote a number of the screenplays for films by his company Danziger Productions.
Helen of the Palatinate
Helen of the Palatinate( 9 February 1493, Heidelberg – 4 August 1524, Schwerin) was a member of the Palatinate- Simmern branch of House of Wittelsbach and a Countess Palatine of Simmern by birth and by marriage Duchess of Mecklenburg.
Baroness Gösta von dem Bussche-Haddenhausen
Baroness Gösta von dem Bussche- Haddenhausen( 26 January 1902 – 13 June 1996) was the mother of Prince Claus of the Netherlands, who was the Prince Consort of Queen Beatrix of the Netherlands, thus making her the mother- in- law of the former Dutch Queen.
She is also the paternal grandmother of King Willem- Alexander of the Netherlands, who is the current Dutch King.
Charles IX of Sweden
Charles IX, also Carl (4 October 1550 – 30 October 1611), was King of Sweden from 1604 until his death.
He was the youngest son of King Gustav I and his second wife, Margaret Leijonhufvud, brother of Eric XIV and John III, and uncle of Sigismund who was king of both Sweden and Poland.
By his father's will he got, by way of appanage, the Duchy of Södermanland, which included the provinces of Närke and Värmland; but he did not come into actual possession of them till after the fall of Eric and the succession to the throne of John in 1568.
Both Charles and one of his predecessors, Eric XIV (1560–68), took their regnal numbers according to a fictitious history of Sweden.
He was actually the third Swedish king called Charles.
He came into the throne by championing the Protestant cause during the increasingly tense times of religious strife between competing sects of Christianity.
In just over a decade, these would break out as the Thirty Years' War.
These conflicts had already caused the dynastic squabble rooted in religious freedom that deposed his nephew and brought him to rule as king of Sweden.
His reign marked the start of the final chapter (dated 1648 by some) of both the Reformation and Counter-Reformation.
With his brother's death in November 1592, the throne of Sweden went to his nephew and Habsburg ally, Sigismund of Poland and Sweden.
During these tense political times, Charles viewed the inheritance of the throne of Protestant Sweden by his devout Roman Catholic nephew with alarm.
Thus, several years of religious controversy and discord followed.
During the period, Charles and the Swedish privy council ruled in Sigismund's name while he stayed in Poland.
After various preliminaries, the Riksdag of the Estates forced Sigismund to abdicate the throne to Charles IX in 1595.
This eventually kicked off nearly seven decades of sporadic warfare as the two lines of the divided House of Vasa both continued to attempt to remake the union between the Polish and Swedish thrones with opposing counter-claims and dynastic wars.
Quite likely, the dynastic outcome between Sweden and Poland's House of Vasa exacerbated and radicalized the later actions of Europe's Catholic princes in the German states such as the Edict of Restitution.
In fact, it worsened European politics to the abandonment or prevention of settling events by diplomacy and compromise during the vast bloodletting that was the Thirty Years' war.

Question: Who is Anna Maria Of The Palatinate's mother-in-law?
Answer: Margaret Leijonhufvud