Other Events and Attributes:

• Nickname: Guillaume
• FSID: LZD1-94T
• Alternate Birth: 1087, Chartres, Ille-et-Vilaine, Bretagne, France
• Appointments / Titles: Between 1102 and 1107, Blois, Loir-et-Cher, Centre, France; Count of Blois
• Appointments / Titles: Between 1102 and 1107, Chartres, Eure-et-Loir, Centre, France; Count of Chartres
• Appointments / Titles: 1104, Sully, Saône-et-Loire, Bourgogne, France; Count of Sully

Notes:

William de Blois (William the Simple) was Count of Blois and Count of Chartres from 1102 to 1107, and Count of Sully. He was the eldest son of Stephen-Henry, Count of Blois and Adela of Normandy, daughter of William the Conqueror and Matilda of Flanders.

He was the older brother of Theobald II, Count of Champagne, King Stephen of England and Henry, Bishop of Winchester.

William was the eldest legitimate male heir of William the Conqueror, after the death of Henry I, but he was not considered as a candidate for the English crown.

William was at first groomed to inherit the comptal throne, and was designated count shortly before his father's departure on his second crusade in 1102. Many historians believed William had a mental deficient, but this has never been substantiated. His mother found him obstreperous and unfit for wide ranging comptal duties. He did once assault and threaten to kill the Bishop of Chartres over a jurisdictional dispute. So, when her second son Theobald came of age, around 1107, Adela elevated him to the position of count of Blois-Chartres, and William retired to his wife's lands in Sully.

In 1104, William married Agnes of Sully, the heiress to the lordship of Sully-sur-Loire, a woman of admirable beauty attached to the court of William's mother. The marriage of William and Agnes was a happy one and several children were born.

Their children included:
Margaret (c. 1105 - 1145). She married Henry, Count of Eu, Lord of Hastings, about 1122.
Henry de Sully, Abbot of Fécamp (d. 1189)
https://www.findagrave.com/memorial/103820601/william-de_blois

WIlliam married de Sully, Agnes in 1104 in Chartres, Eure-et-Loir, Centre, France. Agnes (daughter of de Sully, Gilles II and de Bourges, Eldeberge) was born in 1085 in Saône-et-Loire, Bourgogne, France; died on 8 Mar 1137 in Saône-et-Loire, Franche-Comté, France. [Group Sheet] [Family Chart]

Other Events and Attributes:

• FSID: LBHM-2M4

Notes:

MARGUERITE de Sully (-14 Dec 1145). "Henricus comes Augensis filius comitis Willermi" made donations to the abbey of St Michel, Tréport with the consent of "Margarita comitissa et fratres supradicti comitis Robertus, Willelmus major, Willelmus minor" by a charter dated 1101[784]. The necrology of the church of Eu records the death "15 Dec" of "Margareta Augensis comitissa, mater Johannis comitis"[785]. m as his third wife, HENRI I Comte d'Eu, son of GUILLAUME I Comte d'Eu & his [first/second] wife --- (-Fécamp 12 Jul 1140). [Medieval Lands.]

Marguerite married d'Eu, Henry I in 1122 in Eu, Seine-Maritime, Haute-Normandie, France. Henry (son of of Hastings, William II and de Busli, Beatrice) was born in 1078 in Eu, Seine-Maritime, Haute-Normandie, France; died on 12 Jul 1140 in Foucarmont, Seine-Maritime, Haute-Normandie, France; was buried on 12 Jul 1140 in Foucarmont Abbey, Foucarmont, Seine-Maritime, Haute-Normandie, France. [Group Sheet] [Family Chart]

Other Events and Attributes:

• FSID: G98D-ZKQ

Helisende married de St. Leger, Sir Reginald I in 1125 in Wartling, Sussex, England. Reginald (son of de St. Leger, Sir Geoffrey and FitzGilbert, Adeliza de Clare) was born in 1115 in Wartling, Sussex, England; died in 1176 in Sussex, England. [Group Sheet] [Family Chart]

Other Events and Attributes:

• FSID: G9LP-L1H
• Name: Emma de Saint Leger

Family/Spouse: de Longchamp, Hugh. Hugh was born in 1138 in Wilton, Hertfordshire, England; died in 1195 in Wilton Castle, Ross-on-Wye, Herefordshire, England. [Group Sheet] [Family Chart]