Hugh I of Champagne
Hugh I (c. 1074–after 1130), a younger son of Count Theobald III of Blois and Adele of Valois, inherited Troyes from his brother Odo in 1093 and added Bar-sur-Aube and Vitry, becoming the first count of Champagne. He journeyed several times to the Holy Land, where his vassal Hugh de Payns founded the Knights Templar.
In 1125, leaving his pregnant wife and refusing to acknowledge her child, he abdicated to his nephew Theobald and joined the Templars, dying in the East after 1130.