Everard I of Breteuil

Everard I of Breteuil, son of Gilduin, Count of Breteuil and Viscount of Chartres, and his wife Emmeline. Everard was the patriarch of the Le Puiset family which produced a large number of participants in the First Crusade. The Le Puisets were closely aligned with the family of Montlhéry through the marriage of his third son Hugh to the daughter of Guy I of Montlhéry.
Everard married Humberge, who may have been the sister of the wife of Hugh Bardoul of Broyes. Everard and Humberge had seven children:

Everard II of Breteuil, Count of Breteuil, Viscount of Chartres. Married Adelais de la Ferté-Baudouin. In 1073, Everard went on a pilgrimage to the Holy Land and upon his return joined the abbey of Marmoutier.
Adelaide de Breteuil
Waleran I of Breteuil
Hugh I of Le Puiset, Châtelain of Puiset, Viscount of Chartres. Married Alice of Montlhéry, daughter of Guy I of Montlhéry and Hodierna of Gometz.
Robert of Breteuil, Abbot of Breteuil
Adelaide of Breteuil, married, as his second wife, Roger of Montgomerie, 1st Earl of Shrewsbury
Eremburge, married Rivallon I, Seigneur de Dol.

Everard's descendants would become a family, particularly the descendants of Hugh, that was known for its savagery during the Crusades, as reported by Abbot Suger of St. Denis. Everard's eldest son and namesake, as head of the family, did not take the cross, instead giving up his lands and possessions, entering the abbey of Marmoutier.