Joan of Dampierre
Joan of Dampierre( c. 1225–1245/1246) was the only daughter of Margaret II, Countess of Flanders, and William II of Dampierre.
In 1239, her mother arranged her to be wed to count Hugh III of Rethel.
Margaret stipulated that her dowry should be returned in case the count died without giving Joan a child.
When this indeed happened, the money was refunded.
Joan was betrothed to Theobald II, Count of Bar, in 1243 and married him two years later.
She died childless not long afterwards.
John I, Lord of Ligny
John I of Luxembourg( died: 17 May 1364), was a Lord of Ligny, Beauvoir, Roussy and La Roche from the House of Luxembourg.
He was a son of Lord Waleran II and his wife, Guyotte of Lille.
Around 1330 he married to Alix of Dampierre( d. 1346), the heiress of Guy of Dampierre- Richebourg.
Their children were:
William II of the Netherlands
William II( Willem Frederik George Lodewijk, anglicized as William Frederick George Louis; 6 December 1792 – 17 March 1849) was King of the Netherlands, Grand Duke of Luxembourg, and Duke of Limburg.
William II was the son of William I and Wilhelmine of Prussia.
When his father, who up to that time ruled as sovereign prince, proclaimed himself king in 1815, he became Prince of Orange as heir apparent of the Kingdom of the Netherlands.
With the abdication of his father on 7 October 1840, William II became king.
During his reign, the Netherlands became a parliamentary democracy with the new constitution of 1848.
William II was married to Anna Pavlovna of Russia.
They had four sons and one daughter.
William II died on 17 March 1849 and was succeeded by his son William III.
William II of Baux
William II of Baux( died 1239) was a son of William of Baux.
Following his father, William II carried the title of prince of Orange.
The title had come to the House of Baux through a brother, Raimbaut of Orange, of William II's paternal grandmother, Tiburge de Sarenom, the latter also referred to as Tiburge princess of Orange.
William II, Count of Burgundy
William II of Burgundy( 1061 – 1125), known as the German, was a French nobleman.
Baldwin of Avesnes
Baldwin of Avesnes( September 1219 in Oizy – 10 April 1295 in Avesnes) was a son of Bouchard IV of Avesnes and his wife, Margaret II of Flanders.
His parents' marriage was later declared illegal, because his father had already received minor orders.
Baldwin was later declared legitimate by the pope, at the instigation of King Louis IX of France.
In 1246, Baldwin received Beaumont as an apanage.
He fought his whole life, together with his brother John I, against his half- brothers from his mother's second marriage with William II of Dampierre.
He was said to be responsible for the accident that killed his half- brother William III of Dampierre during a tournament in Trazegnies.
After the Edict of Péronne and the death of his brother John, he reconciled with his mother, who sent him to Namur on a revenge expedition.
In 1287, Baldwin sold Dunkirk and Warneton to Guy, Count of Flanders.
He is also known as a chronicler; he wrote the" Chronique Universelle".
Charles Verlinden identifies the diplomat Baldwin of Hainaut as Baldwin of Avesnes.
Mathilde of Bourbon
Mathilde of Bourbon (– 18 June 1228) was a French noblewoman who was the ruling Lady of Bourbon from 1171 until her death.
William II, Landgrave of Hesse
William II( 29 April 1469 – 11 July 1509) was Landgrave of Lower Hesse from 1493 and Landgrave of Upper Hesse after the death of his cousin, William III, Landgrave of Upper Hesse in 1500.
William II is also called" William the Middle" to distinguish him from his elder brother" William I the Elder", and his cousin" William III, the Younger".
His parents were Louis II the Frank( 1438 – 1471) and Mechthild, daughter of Count Louis II of Württemberg.
William II became Landgrave of Lower Hesse in 1493, after his brother William I resigned.
On 9 November 1497 William II married Yolande, daughter of Frederick II of Vaudémont.
She died on 21 May 1500 after the marriage produced one child, William( 27 March 1500 – 8 April 1500).
The same year on 20 October, his second marriage was to Anna of Mecklenburg- Schwerin( 14 September 1485 – 12 May 1525), who bore him three children:
In 1500, William II reunited the Landgraviate of Hesse after the death of his cousin William III.
In 1503, Emperor Maximilian I commissioned William with executing the ban on Elector Philip of the Palatinate.
Guy II of Dampierre
Guy II of Dampierre( died 18 January 1216) was constable of Champagne, and Lord of Dampierre, Bourbon and Montluçon.
He was the only son of William I of Dampierre, Lord of Dampierre, and Ermengarde of Mouchy.
William I of Dampierre was the son of Guy I, Lord of Dampierre and Viscount of Troyes, and Helvide de Baudémont.
Guy II participated in the Third Crusade as a member of an advance party who initiated the Siege of Acre in the fall of 1189.
In 1212, Guy was sent at the head of a royal army sent by King Philip II of France to confiscate the lands of Count Guy II of Auvergne.
He took Nonette, Tournoël Castle, Riom in December 1213, and removed Guy Auvergne from power.
His participation in the Battle of Bouvines in 1214, was decisive in the French victory.
William II of Dampierre
William II (1196 – 3 September 1231) was the lord of Dampierre from 1216 until his death.
He was the son of Guy II, constable of Champagne, and Mathilde of Bourbon.
His brother, Archambaud VIII, inherited Bourbon, and William inherited Dampierre.
He married Margaret II, Countess of Flanders and Hainault, in 1223 and was thus regent of Flanders until his death as "Willem I" (or "Guillaume I").
In 1226 William and Margaret founded a Cistercian nunnery at Saint-Dizier.
Their sons William III and John continued to confirm and patronize the nunnery during their lives, including William II's burial there in 1231.
William and Margaret founded more Cisterian nunneries throughout the county of Flanders, including Flines Abbey.
He had four children (three sons) by Margaret and the eldest took part in the War of the Succession of Flanders and Hainault:

Question: What nationality is William Ii Of Dampierre's mother?
Answer: French