Odo acceded to the throne of France in 888, but he seems to have already delegated the country between the Maine and the Mayenne to Ingelger as a viscount or count around 870, possibly owing to the connections of his wife Adelais of Amboise. Their son Fulk the Red succeeded to his father's holdings in 888, is mentioned as a viscount after 898, and seems to have been granted or usurped the title of count by the second quarter of the 10th century. His descendants continued to bear that rank for three centuries. He was succeeded by his son Fulk II the Good, author of the proverb that an unlettered king is a wise ass, in 938. He was succeeded in turn by his son Geoffrey I "Grisegonelle" ("Greytunic") around 958.