John I, Count Palatine of Zweibrücken
John I of Zweibrücken( known as the Lame;; 8 May 1550 – 12 August 1604) was Count Palatine and Duke of Zweibrücken during 1569 – 1604.
He was born in Meisenheim as the second son of Wolfgang, Count Palatine of Zweibrücken and his wife Anna of Hesse.
In 1588 he changed the state religion from Lutheranism to Calvinism.
He died in Germersheim in 1604 and was buried in the Alexanderkirche in Zweibrücken.
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.
Countess Caroline of Nassau-Saarbrücken
Countess Caroline of Nassau-Saarbrücken (12 August 1704 – 25 March 1774) was Countess Palatine of Zweibrücken by marriage.
Alexander, Count Palatine of Zweibrücken
Alexander of Zweibrücken( 26 November 1462 – 21 October 1514) was Count Palatine and Duke of Zweibrücken and of Veldenz in 1489 – 1514.
He was the son of Louis I, Count Palatine of Zweibrücken and his wife Johanna of Croÿ.
Alexander promised to establish a church after the successful return from a crusade, and it was kept in 1489 with the building of the Alexanderskirche in Zweibrücken.
John, Count Palatine of Gelnhausen
John, Count Palatine of Gelnhausen( 24 May 1698 in Gelnhausen – 10 February 1780 in Mannheim) was Count Palatine and Duke of Zweibrücken- Birkenfeld at Gelnhausen.
Kaspar, Count Palatine of Zweibrücken
Kaspar, Count Palatine of Zweibrücken and Veldenz( 11 July 1459 – c. Summer 1527) was Duke of Zweibrücken from 1489 to 1490.
Christian IV, Count Palatine of Zweibrücken
Christian IV, Count Palatine of Zweibrücken-Birkenfeld (6 September 1722 in Bischweiler – 5 November 1775 in Herschweiler-Pettersheim) was Duke of Zweibrücken from 1735 to 1775.
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.
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.
Christian III, Count Palatine of Zweibrücken
Christian III, Count Palatine of Zweibrücken-Birkenfeld (Strassburg, 7 November 1674 – Zweibrücken, 3 February 1735) was a German nobleman.
He was a member of the House of Palatinate-Zweibrücken-Birkenfeld, a cadet branch of the House of Wittelsbach.
He was the son of Christian II of Zweibrücken-Birkenfeld and Katharina Agathe, Countess of Rappoltstein.
He was Count Palatine of Zweibrücken-Birkenfeld from 1717 to 1731.
In 1731, he inherited the sovereign duchy of Palatinate-Zweibrücken and thus became Count Palatine and Duke of Zweibrücken.
He was also Count of Rappoltstein from 1699 until his death.

Question: What is the date of birth of Frederick Michael, Count Palatine Of Zweibrücken's mother?
Answer: 12 August 1704