Odo I of Champlitte
Odo I of Champlitte (1123–1187), called the Champenois, was the unrecognised son of Hugh, Count of Champagne, and Isabella of Burgundy; Hugh entered the Temple in 1125 and left the county to his nephew Theobald II. Reared by his mother's family, Odo became lord of Champlitte and Viscount of Dijon.
Odo claimed Champagne, and in 1143 King Louis VII, at war with Theobald, captured Vitry and gave it to him, but peace forced Odo to surrender the city. In 1171 he made a pilgrimage to the Holy Land, and his son William became the first Prince of Achaea.