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.
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:
Maria Belgica of Portugal
Maria Belgica of Portugal, also known as Maria Belgica of Crato( born before 12 October 1598 – 28 July 1647), was the daughter of Manuel of Portugal, son of the self- proclaimed Portuguese king António of Crato, and Countess Emilia of Nassau( 1569 – 1629), the youngest daughter of William of Orange.
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.
Manuel, Hereditary Prince of Portugal
Manuel of Portugal( c. 1568–22 June 1638) was the illegitimate son of António, Prior of Crato, pretender to the Portuguese throne during the 1580 Portuguese succession crisis.
He secretly married in 1597 Countess Emilia of Nassau, daughter of William the Silent and Anna of Saxony.
Anna of Saxony
Anna of Saxony (23 December 1544 – 18 December 1577) was the heiress of Maurice, Elector of Saxony, and Agnes, eldest daughter of Philip I, Landgrave of Hesse.
Maurice's only son, Albert, died in infancy.
Anna was the second wife of William the Silent.
Anna was born and died in Dresden.
Her wealth drew many suitors; before the proposal of Orange in 1560, there were negotiations with the Swedish royal house.
She accepted the suit of William I of Orange, and they were married on 25 August 1561.
Minamoto no Chikako
She was the mother of Prince Morinaga.
Countess Emilia Antwerpiana of Nassau
Countess Emilia Antwerpiana of Nassau( Antwerp, 9 December
1581- Landsberg, 28 September 1657) was the sixth and youngest daughter of William the Silent and his third wife, Charlotte of Bourbon.
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 Emilia of Nassau
Countess Emilia of Nassau (10 April 1569 – 16 March 1629) was the third and youngest daughter of William the Silent and his second wife Anna of Saxony.

Question: Where was the mother of Countess Emilia Of Nassau born?
Answer: Dresden