“Widdo Lononis filius” donated “Gaudiacus” to Saint-Pierre de la Couture, with the consent of “dominis meis Hugone atque Herberto comitibus et vice comite Radulpho eiusque filii” by undated charter dated to [1000/15].
He succeeded his father in [1014/15] as Comte du Maine. The Gesta Ambaziensium names "comes pernimium iuvenis Herbertus cognomento Evigilans Canem" as ruler of "Cenomannicum consulatum" during the life of Lizois de Basauges.... The Actus pontificum Cenomannis names "Herberto, comite Cenomanensi" during the bishopric of "Avesgaudi" (from [997] to [1036]) and records disputes between the two. Orderic Vitalis records that "Herbertus Cenommanorum comes ex prosapia (ut fertur) Caroli Magni originem", known as "Evigilans-Canem" because of his merit, after the death of “Hugonis patris sui”, whom “Fulco senior” [Foulques III Comte d´Anjou] had subjugated, attacked Anjou. "Herbertus Evigilans canem cognomine" donated property to the abbey of Saint-Pierre-de-la-Cour du Mans after defeating "Odone Campaniensi…comite" by charter dated Jul 1016, which shows that Héribert must have reversed his father's policy of support for Eudes Comte de Blois... The Chronicle of Adémar de Chabannes records that Foulques "Nerra" Comte d'Anjou captured "Arbertum, Cenomannis comitem" at Saintes, "prima quadregismæ dominica post cœnam nocte" (7/8 Mar) according to a later passage, in 1029 according to the editor of the version consulted.
The Martyrologe de la Couture records the death "XV Kal Mar" of "Herbertus comes Cenom".
The name of Héribert's wife is not known. The Chronicle of Adémar de Chabannes records that the wife of Foulques "Nerra" Comte d'Anjou attempted to capture "uxorem Arberti" on the same day her husband was captured but that she was able to escape. 1
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