Hugh I of Le Puiset (died 23 December 1096), son of Everard I of Breteuil and his wife Humberge.
[1] In 1067, taking advantage of the weakness of Philip I of France, he seized the royal castle of Puiset and settled there.
In 1073, Theobald III, Count of Blois, became Count of Chartres and did not hesitate to defy royal order, defeating the royal army in 1079 at Le Puiset.
[1] The family of Montlhéry was also part of the turbulent nobility that King Louis VI would have to put down a generation later.
[citation needed] The alliances of the Montlhéry Clan formed a broad network of nobles who engaged heavily in the Crusades.