Maria of Nassau-Dillenburg
Maria of Nassau- Dillenburg( 1568- 1625) was a daughter of Count John VI" the Elder" of Nassau- Dillenburg and his first wife, Countess Elisabeth of Leuchtenberg.
Maria married
John Louis I, Count of Nassau- Wiesbaden- Idstein in 1588 and was the mother of:
Charlotte of Bourbon
Charlotte of Bourbon (1546/1547 – 5 May 1582) was a Princess consort of Orange as the third spouse of William the Silent, Prince of Orange, the main leader of the Dutch revolt against the Spanish.
She was the fourth daughter of Louis, Duke of Montpensier and Jacqueline de Longwy, Countess of Bar-sur-Seine.
Johann VII, Count of Nassau-Siegen
Count John VII of Nassau( 7 June 1561 – 27 September 1623) was Count of Nassau in Siegen and Freudenberg as John I.
He was the second son of Count John VI of Nassau- Dillenburg and his wife Elisabeth of Leuchtenberg.
Elisabeth of Nassau-Dillenburg, Countess of Wied
Elisabeth of Nassau-Dillenburg (1 December 1488 – 3 June 1559 in Dillenburg) was a member of the House of Nassau.
She was a daughter of John V of Nassau-Dillenburg and his wife Elisabeth of Hesse-Marburg.
Her brothers were Henry III of Nassau-Breda, John of Nassau-Vianden-Dietz, Ernest of Nassau and William the Rich.
Her sister was Maria of Nassau.
Countess Elisabeth of Nassau
Countess Elisabeth of Nassau ("Elisabeth Flandrika")
(Middelburg, 26 April 1577 – Sedan, 3 September 1642) was the second daughter of prince William of Orange and his third spouse Charlotte of Bourbon.
She was Duchess of Bouillon by marriage.
Frederick Augustus, Duke of Nassau
Friedrich August, Duke of Nassau, Prince of Nassau- Usingen( 23 April 1738 in Usingen – 24 March 1816 in Wiesbaden) was the last Prince of Nassau- Usingen and, jointly with his cousin, Friedrich Wilhelm of Nassau- Weilburg, first Duke of Nassau.
He died without surviving male issue and was succeeded by his cousin's son, Wilhelm.
Henry I, Count of Nassau-Siegen
Henry I of Nassau- Siegen,( – between 13 July and 14 August 1343) was Count of Nassau- Siegen, a part of the County of Nassau, and ancestor of the House of Nassau- Siegen.
He comes from the Ottonian branch of the House of Nassau.
Elisabeth of Nassau-Dillenburg
Countess Elisabeth of Nassau- Dillenburg( born 25 September 1542 in Dillenburg – died: 18 November 1603 in Dillenburg) was a daughter of William I, Count of Nassau- Dillenburg and Juliana of Stolberg and was one of the sisters of William the Silent.
Elisabeth of Hanau, Countess of Hohenlohe
Elisabeth of Hanau( – 25 May 1475) was a daughter of Lord Ulrich V and his wife, Countess Elisabeth of Ziegenhain.
She died on 25 May 1475 and was buried in the Gnadental monastery in Michelfeld.
Walram II, Count of Nassau
Walram II of Nassau,( – 24 January 1276), was Count of Nassau and is the ancestor of the Walramian branch of the House of Nassau.

Question: Who is Countess Elisabeth Of Nassau's maternal grandfather?
Answer: Louis, Duke of Montpensier