Comte Guigues and his wife "Regina nominate Maheldis" donated property to Chalais abbey, with the approval of "leurs fils Guigues Delfinus et Humbert", by charter dated 31 Oct 1110. "Guigo Delphinus" donated "decimas ecclesiæ Heroneii", payment of which "pater meus Guigo comes" relinquished in his favour, to Domène by undated charter.
He succeeded his father as Comte d'Albon. He was known as "Dauphin", the first of the family to be referred to in contemporary charters with the surname "Delfinus". A charter dated to [1122] records a donation by "Guigo comes et Matildis uxor eius" of property "in parochia Sancti Saturnini juxta aquam Velciam" to the abbey of Bonnevaux, later confirmed by "Guigo delphinus et uxor eius et Humbertus Podiensis episcopus frater eius", the confirmation witnessed by "Matildis mater eius".
The necrology of the Priory of Saint-Martin-des-Champs records the death "V Kal Jul" of "Guigo comes". 1