Philipp Ludwig III, Count of Hanau-Münzenberg
Count Philipp Ludwig III of Hanau- Münzenberg( in Hanau – 12 November 1641 in The Hague) was the last count of the main Hanau- Münzenberg line of the House of Hanau.
After his death, the Hanau- Münzenberg- Schwarzenfels line inherited Hanau- Münzenberg.
Albrecht of Hanau-Münzenberg
Albert of Hanau- Münzenberg( 12 November 1579 – 19 December 1635 in Strasbourg) was the younger son of Philip Louis I of Hanau- Münzenberg( 1553- 1580) and his wife, Countess Magdalena of Waldeck( 1558- 1599).
The only sons of his parents to reach adulthood were Albert and his elder brother Philip Louis II.
Albert's son John Ernest was the last male member of the Hanau- Münzenberg line of the House of Hanau.
Philipp Moritz, Count of Hanau-Münzenberg
Philipp Moritz of Hanau- Münzenberg( 25 August 1605 – 3 August 1638 in Hanau) succeeded his father as Count of Hanau- Münzenberg in 1612.
Johanna of Hanau-Münzenberg
Countess Johanna of Hanau-Münzenberg (1610 – 13 September 1673) was a daughter of Count Albert of Hanau-Münzenberg-Schwarzenfels and Countess Ehrengard of Isenburg (1577 – 1637).
Hanau-Münzenberg-Schwarzenfels was a cadet branch of Hanau-Münzenberg.
Philipp Ludwig I, Count of Hanau-Münzenberg
Philipp Ludwig I, Count of Hanau- Münzenberg( 21 November 1553 – 4 February 1580) succeeded his father in the government of the County of Hanau- Münzenberg in 1561.
Maria of Hanau-Münzenberg
Maria of Hanau-Münzenberg (20 January 1562 – 15 February 1605 in Frankfurt) was the youngest daughter of Count Philip III (1526-1561) and Countess Palatine Helena of Simmern (1532-1579).
She was born after her father's death and remained unmarried.
As with many female members of aristocratic families of the period who did not belong to important royal houses, the research into her life has many gaps.
A very incomplete picture of her life is known; only a few unusual facts, such as that she remained unmarried.
This was unintended; her mother's relatives tried to arrange a marriage into the House of Wittelsbach for her in 1573.
Countess Catharina Belgica of Nassau
Countess Catharina Belgica of Nassau (31 July 1578 – 12 April 1648) was a countess of Hanau-Münzenberg by marriage to Philip Louis II, Count of Hanau-Münzenberg, and regent of Hanau-Münzenberg from 1612 until 1626.
She was the third daughter of William the Silent and his third spouse Charlotte of Bourbon.
Countess Palatine Helena of Simmern
Countess Palatine Helena of Simmern (13 June 1532 – 5 February 1579 at Schwarzenfels Castle in Sinntal) was the daughter of Count Palatine and Duke John II of Simmern and his wife, Margravine Beatrice of Baden.
She was Countess of Hanau-Münzenberg by marriage.
Philipp III, Count of Hanau-Münzenberg
Count Phillip III of Hanau- Münzenberg( 30 November 1526 – 14 November 1561) ruled the County of Hanau- Münzenberg from 1529 until his death.
Reinhard IV, Count of Hanau-Münzenberg
Count Reinhard IV of Hanau- Münzenberg( born: 14 March 1473 – died: 30 January 1512) succeeded in 1500 his father Philipp I of Hanau- Münzenberg( 1449 – 1500) in the government of the County of Hanau- Münzenberg.
He served as co-regent from 1496 onwards.

Question: Who is Maria Of Hanau-Münzenberg's maternal grandfather?