Renauld I, Count of Nevers
Renauld I (died 29 May 1040) was a French nobleman.
He was the ruling count of Nevers from 1028 until his death at the battle of Seignelay against Robert I, Duke of Burgundy.
Louis I, Count of Nevers
Louis I( 1272 – 22 July 1322) was" suo jure" Count of Nevers and" jure uxoris" Count of Rethel.
Louis was a son of Robert III, Count of Flanders, and Yolande, Countess of Nevers.
He succeeded his parents as Count of Nevers.
In December 1290, he married Joan, Countess of Rethel, and thus became her co-ruler in the County of Rethel.
They had two children:
He died in Paris shortly before his father and thus never succeeded his father as Count of Flanders.
Hedwig of France, Countess of Nevers
Hedwig (or Advisa) of France (c. 1003–1063) was a French princess, the daughter of Robert II of France and Constance of Arles.
She married Renauld I, Count of Nevers, on 25 January 1016, and they had the following children:
William I, Count of Nevers
William I, Count of Nevers, was the son of Renauld I, Count of Nevers and Hedwig of France, Countess d' Auxerre.
In 1040 he succeeded his father as Count of Nevers and d'Auxerre and in 1065 he was also the Count of Tonnerre.
He married Ermengarde, daughter of Renauld, Count of Tonnerre about 1039.
William died at Nevers 20 June 1100.
William I and Ermengarde had six children:
Engelbert, Count of Nevers
Engelbert of Cleves, Count of Nevers( 26 September 1462 – 21 November 1506) was the younger son of John I, Duke of Cleves and Elizabeth of Nevers, only surviving child of John II, Count of Nevers.
In 1481, he was sent with a large army to the Bishopric of Utrecht by his brother John II, Duke of Cleves where they successfully ousted David of Burgundy.
But after the Siege of Utrecht( 1483) he had to flee, and Utrecht returned to the control of Burgundy.
He married Charlotte of Bourbon- Vendôme, daughter of John VIII, Count of Vendôme, circa 1489.
Their son Engelbert became Count of Nevers and Eu in 1491 upon the death of his maternal grandfather John II, Count of Nevers.
His eldest brother John II( 1458 – 1521) inherited Cleves.
Marie d'Albret, Countess of Rethel
Marie d' Albret, Countess of Rethel, Countess of Nevers( 25 March 1491 – 27 October 1549) was the suo jure Countess of Rethel, a title which she inherited at the age of nine upon the death of her mother, Charlotte of Nevers, Sovereign Countess of Rethel, on 23 August 1500.
She was the wife of Charles II of Cleves, Count of Nevers.
Matilda II, Countess of Nevers
Matilda II, Countess of Nevers( 1234/35–1262), also known as Maud of Dampierre or Mathilda II of Bourbon, was a sovereign Countess of Nevers, Countess of Auxerre, Countess of Tonnerre and Lady of Bourbon.
She was a daughter of Archambaud IX of Bourbon and Yolande de Châtillon, Countess of Nevers.
As heiress to the counties of Nevers, Auxerre and Tonnerre, she was married off to Odo, Count of Nevers, the son and heir of Hugh IV, Duke of Burgundy.
By this marriage Odo reunited two important areas that had previously been united as the Duchy of Burgundy, but he died leaving no male heirs, and so the united territory passed to his brother Robert II, Duke of Burgundy.
After her father's death Matilda also became Lady of Bourbon.
With Odo she had three children:
Francis I, Duke of Nevers
Francis I of Cleves,( 2 September 1516 – 13 February 1561) was a commander in the French Royal Army and the first Duke of Nevers.
He participated in the suppression of the Amboise conspiracy.
The only son of Charles II of Nevers( died in the Louvre in 1521) and Marie d' Albret, Countess of Rethel, Francis succeeded his father as Count of Nevers and Eu. In 1539 he became Duke of Nevers.
When his mother died in 1549, he also inherited the title of Count of Rethel.
In 1538, Francis married Marguerite of Bourbon- La Marche( 1516 – 1589), daughter of Charles de Bourbon, Duke of Vendôme and Françoise of Alençon.
They had five children:
Matilda I, Countess of Nevers
Matilda I, Countess of Nevers or Mathilde de Courtenay, or Mahaut de Courtenay,( 1188 – 1257), was a ruling countess of Nevers, Auxerre and Tonnerre.
She was the only daughter of Peter II of Courtenay and of Agnes of Nevers, born from the Capetian House of Courtenay, she was married to Hervé IV of Donzy and then to Guigues IV of Forez.
Charles II, Count of Nevers
Charles II( died in Louvre in 1521) was Count of Nevers( 1506 – 1521).
He was son of Engelbert de La Mark and Charlotte de Bourbon- Vendome.
He belongs to the House de La Mark.
His father Engelbert, Count of Nevers( 1491 – 1506) was son of John I, Duke of Cleves( 1384 – 1404) and Elisabeth Countess of Nevers.
Elisabeth was great- granddaughter of Philip II duke of Burgundy.
Charles II succeeded his father in 1506.
He married in 1504 to Marie d' Albret, Countess of Rethel, daughter of Jean d' Albret and Charlotte Countess of Rethel.
Thus he became Count of Rethel jure uxoris.
They had:

Question: What is the date of death of Hedwig Of France, Countess Of Nevers's husband?
Answer: 29 May 1040