 Hugh's name was not a Carolingian royal name, but it was common among the Etichonid family of Alsace, his mother's relatives.His name suggests that his father did not originally intend him to succeed him as king, but instead to rule in Alsace, where his maternal relatives were prominent.After Lothair repudiated his wife, Teutberga, shortly after their marriage in 855, he sought to have his relationship with Waldrada and his children with her, including Hugh, legitimized.