John II of Nassau-Saarbrücken
John II of Nassau-Saarbrücken (4 April 1423, in Saarbrücken – 15 July 1472, in Vehingen) was a son of Philipp
I of Nassau-Weilburg and Elisabeth of Lorraine-Vaudémont.
He was the duke of Nassau-Saarbrücken from 1429 to 1472.
He married Johanna (1443–1469), a daughter of John IV of Loon.
After Johanna's death, he married Elisabeth, the daughter of Count Louis I of Württemberg-Urach.
With her, he had a son:
Henry Louis, Prince of Nassau-Saarbrücken
" Henry Louis" Charles Albert, Prince of Nassau- Saarbrücken( 9 March 1768 in Saarbrücken – 27 April 1797 near Cadolzburg), was a titular prince of Nassau- Saarbrücken.
He never actually reigned, because the country was occupied by French revolutionary troops from 1793 until after his death.
John III, Count of Nassau-Saarbrücken
John III, Count of Nassau-Saarbrücken (5 April 1511 – 23 November 1574) was a son of Count John Louis of Nassau-Saarbrücken and his second wife Catherine of Moers.
He succeeded his childless brother Philip II in 1554 as Count of Nassau-Saarbrücken.
He married Adelaide of Kronenkracht and Elisabeth Selz.
However, his children predeceased him.
When he died in 1574, Nassau-Saarbrücken fell to Nassau-Weilburg.
Louis, Prince of Nassau-Saarbrücken
Louis, Prince of Nassau- Saarbrücken( 3 January 1745 in Saarbrücken – 2 March 1794 in Aschaffenburg) was the last ruling prince of Nassau- Saarbrücken.
He ruled from 1768 until the French Revolution.
Elisabeth of Lorraine-Vaudémont
Elizabeth of Lorraine-Vaudémont, Countess of Nassau-Saarbrücken (also known as "Isabella of Lotharingen"; in Lorraine – 17 January 1456 in Saarbrücken) was a pioneer of the novel in Early New High German language.
Around 1437, she translated and edited four French romances  by Odo Arpin of Bourges, Sibille, Loher & Maller and Hug Chapler.
Crato, Count of Nassau-Saarbrücken
Crato, Count of Nassau- Saarbrücken( 7 April 1621 – 25 July 1642, Straelen), was the oldest son of Count William Louis of Nassau- Saarbrücken and his wife, Landgravine Anna Amalia of Baden- Durlach.
He succeeded his father as Count of Nassau- Saarbrücken in 1640.
However, as he was still a minor at the time, he stood under the regency of his mother.
Crato was killed in battle at Straelen in 1642.
He was succeeded by his younger brother John Louis.
Charles Louis, Count of Nassau-Saarbrücken
Charles Louis, Count of Nassau- Saarbrücken
( 6 January 1665 – 6 December 1723) was the son of Count Gustav Adolf of Nassau- Saarbrücken and Countess Clara Eleanor of Hohenlohe- Neuenstein.
He was born in Saarbrücken, but was brought up by Wolfgang Julius of Hohenlohe- Neuenstein the brother of his mother, and continued his studies in Tübingen and Paris.
In the Great Turkish War, he served as an officer in the army of Emperor Leopold I.
When his brother Louis Crato died in 1713 he took up the government in Nassau- Saarbrücken.
That same year he married Christiane Charlotte of Nassau- Ottweiler, the daughter of his cousin Frederick Louis of Nassau- Ottweiler.
During his reign, he promoted the industrialization of his country.
In Warndt he expanded the glass works, which had been established already under Louis II by settling Huguenot refugees.
In Sulzbach, he built a new salt works in 1719 and a graduation tower.
He founded the town of Karlings( now: Carling), which was named after him.
When his second cousin, Count George August Samuel of Nassau- Idstein, died in 1721, he took up government in Nassau- Idstein- Wiesbaden, jointly with his cousin Frederick Louis of Nassau- Ottweiler.
He moved briefly to Wiesbaden in 1722, but returned to Saarbrücken later that year, then moved to Idstein in 1723.
He died there on 21 December 1723 and was buried in the chapel of Idstein.
A plaque in the castle church in Saarbrücken refers to him.
As both his sons died in infancy, the government of Nassau- Saarbrücken was inherited by father- in- law Frederick Louis of Nassau- Ottweiler.
Philip IV, Count of Nassau-Weilburg
Philip IV of Nassau- Weilburg, also known as Philip III of Nassau- Saarbrücken( 14 October 1542 in Weilburg – 12 March 1602 in Saarbrücken) was Count of Nassau- Weilburg from 1559 until his death and since 1574 also Count of Nassau- Saarbrücken.
Both possessions belonged to the Walram line of the House of Nassau.
In Weilburg, he was the fourth count named Philip, but only the third in Saarbrücken, because his father, Philip III of Nassau- Weilburg never held Nassau- Saarbrücken.
Anna Amalie of Baden-Durlach
Anna Amalia of Baden- Durlach( born: 9 July 1595; died: 18 November 1651 in Saarbrücken) was a Countess of Nassau- Saarbrücken by marriage to William Louis, Count of Nassau- Saarbrücken, and regent of Nassau- Saarbrücken during the minority of her son from 1640.
William Henry, Prince of Nassau-Saarbrücken
William Henry, Prince of Nassau- Saarbrücken( 6 March 1718 – 24 July 1768), was Prince of Nassau- Saarbrücken from 1741 until his death.

Question: What is the date of death of John Ii Of Nassau-Saarbrücken's mother?
Answer: 17 January 1456