Cawley states that an unknown Judith was the mother of Adelise, and an unknown Adelais was the mother of the other children. The evidence he cites for this seems good.
Son père, premier seigneur de Beaumont-sur-Oise, connu sous le nom de Yves (Ive ou Ives) le vieux, dit Ive le Clerc, vassal d'Hugues Capet, amassa les terres de la région.