Hugh I (1040–1118) was the count of Rethel from 1065 to 1118. He was the son of Count Manasses III and his wife Judith.
Hugh married Melisende of Crécy, the daughter of Lord Guy I of Montlhéry. They had the following children: Manasses (1054–1115) Gervais (1056–1124), who became count of Rethel Baldwin (1058–1131), who became king of Jerusalem Matilda (b. 1060), who became countess of Rethel Hodierna, married Héribrand III of Hierges Cecilia, who married Roger of Salerno, prince-regent of Antioch Béatrice, who married Leo I, lord of Armenian Cilicia
See also Houses of Montlhéry and Le Puiset
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