John I, Count of Dreux
John I of Dreux( 1215–1249), Count of Dreux and Braine, was the son of Robert III of Dreux and Annora( Aenor) of Saint- Valéry.
Robert III, Count of Dreux
Robert III of Dreux( 1185 – 1234), Count of Dreux and Braine, was the son of Robert II, Count of Dreux, and Yolanda de Coucy.
He was given the byname Gasteblé( lit. wheat- spoiler) when he destroyed a field of wheat while hunting in his youth.
Along with his brother Peter, Duke of Brittany he fought with future Louis VIII of France in 1212 at Nantes and was captured there during a sortie.
Exchanged after the Battle of Bouvines for William Longsword, Earl of Salisbury, he fought in the Albigensian Crusade, besieging Avignon in 1226.
He was a supporter of Blanche of Castile during her regency after the death of Louis VIII in 1226.
In 1210 he married Alianor de St. Valéry( 1192–15 Nov 1250) and they had several children:
Robert II, Count of Dreux
Robert II of Dreux (1154 – 28 December 1218), Count of Dreux and Braine, was the eldest surviving son of Robert I, Count of Dreux, and Agnes de Baudemont, countess of Braine, and a grandson of King Louis VI of France.
He participated in the Third Crusade, at the Siege of Acre and the Battle of Arsuf.
He took part in the war in Normandy against the Angevin Kings between 1193 and 1204.
Count Robert had seized the castle of Nonancourt from Richard I of England while he was imprisoned in Germany in late 1193.
The count also participated in the Albigensian Crusade in 1210.
In 1214 he fought alongside King Philip Augustus at the Battle of Bouvines.
Robert I, Count of Dreux
Robert I of Dreux, nicknamed "the Great" (– 11 October 1188), was the fifth son of Louis VI of France and Adélaide de Maurienne.
Through his mother he was related to the Carolingians and to the Marquess William V of Montferrat.
In 1137 he received the County of Dreux as an appanage from his father.
He held this title until 1184 when he granted it to his son Robert II.
In 1139 he married Agnes de Garlande.
In 1145, he married Hawise of Salisbury, becoming count of Perche, as regent to his stepson Rotrou IV.
By his third marriage to Agnes de Baudemont in 1152, he received the County of Braine-sur-Vesle, and the lordships of Fère-en-Tardenois, Pontarcy, Nesle, Longueville, Quincy-en-Tardenois, Savigny, and Baudemont.
Robert I participated in the Second Crusade and was at the Siege of Damascus in 1148.
In 1158 he fought against the English and participated in the Siege of Séez in 1154.
Philippa of Dreux
Philippa of Dreux, Dame de Coucy (1192–1242) was a daughter of Robert II of Dreux and his second wife Yolande de Coucy.
Robert V, Count of Dreux
Robert V of Dreux( – 22 March 1329), Count of Dreux and Braine, was the eldest son of John II of Dreux.
His mother was Peronelle de Sully, the principal lady of Joan II, Countess of Burgundy's household.
Robert was a supporter of Joan II's husband, Philip V of France.
He succeeded his father as Count of Dreux in 1309 and reigned until his death in 1329.
He married Marie d' Enghien in April 1321, but died without issue on 22 March 1329 in Braine and was succeeded by his brother, John III of Dreux.
Peter, Count of Dreux
Peter,( 1298 – 3 November 1345), Count of Dreux, was the youngest son of John II, Count of Dreux and Jeanne of Beaujeu.
He participated in the war of Philip VI of France, fighting against the Flemish who were revolting against their count, and he fought at the Battle of Cassel in 1328.
John III, Count of Dreux
John III( – 1331), Count of Dreux, was the second son of John II of Dreux and of Jeanne of Beaujeu.
Maud of Normandy
Maud of Normandy( died 1006) was the daughter of Richard the Fearless and Gunnor.
Her siblings were Richard II" the Good", Duke of Normandy, Robert, Archbishop of Rouen, Count of Evreux, died 1037, Mauger, Count of Corbeil, Robert Danus, Emma of Normandy and Hawise of Normandy.
Maud was married to Odo II, Count of Blois but died young and without issue.
After her death in 1006, Odo started a quarrel with his brother- in- law, Richard II of Normandy, over the dowry: part of the town of Dreux.
King Robert II, who had married Odo's mother, imposed his arbitration on the contestants in 1007, leaving Odo in possession of Dreux.
Odo II, Count of Blois went on to marry Ermengarde, daughter of Robert I of Auvergne and have issue.
Theobald II of Blois
Theobald II, Count of Blois( Thibaut II; c. 985 – 11 July 1004) was the eldest son and heir of Odo I, Count of Blois, and Bertha of Burgundy.
The stepson of Robert II of France, he became Count of Blois, Châteaudun, Chartres and Reims after the death of his father in 996.
Theobald II left no heirs; on his death, he was succeeded by his younger brother, Odo II, Count of Blois.

Question: What is the date of death of Robert Ii, Count Of Dreux's father?
Answer: 11 October 1188