The Chronicle of Alberic de Trois-Fontaines names "Guilelmum et Raymundum" as the two sons of "Guilelmi…Tolose comitis" & his wife "Alymodis multinuba". "Wilelmo…Raimundo…Ugoni" are named as sons of "Pontio" in the charter of "Vilelmo comite Tolosano" dated 9 Jun 1063.
He succeeded his father in 1060 as GUILLAUME IV Comte de Toulouse. "Willelmus Tolosanus comes" donated property to the abbey of Moissac, at the request of "quodam nobili viro Bernardo Gauzelini et…filiis eius Arnaldo abbate ac Gauzelino", by charter dated 1061. On the death of his cousin Berthe Ctss de Rouergue in [1063/64], the counties of Agde, Béziers, Narbonne, Rouergue and Uzès reverted to Toulouse. "Rogerius comes Fuxensis et coniux mea Sicardis comitissa" donated property to Saint-Pons de Thomières by charter dated to [1074], subscribed by "domni G. comitis Tolosani et domni Raymundi fratris eius comitis Ruthenæ". "Willelmus Tolosanus civitatis comes" donated property to the abbey of Moissac by charter dated 14 Mar 1078. "Guillelmus Tolosanensis, Albiensis, seu Caturcensis ac Lutevensis necne Carcassonæ...comes et dux" confirmed donations made by "Rogerius comes Fossensis" to Saint-Pons de Thomières, founded by “antiquo duce et comite Aquitanensium...Pontio”, by charter dated 15 May 1079, the signature clause of which states "...et in filium meum Pontium eis [which appears to refer back to “sanctum Pontium et aliorum martyrum”] commendavi". "Guillelmus Tolonanensium, Albensium seu Caturcensium, Lutevensium, Petragorensium, Carcassonensium, Aginnensium necne Astarachensium comes et dux…cum uxore mea…Emma" confirmed donations by "proavuo…meo Pontio Aquitanorum duce" to Saint-Pons de Thomières by charter dated 16 Jun 1080, signed by "Regimundus comes frater eius, Bertrandus comes nepos Willelmi et filius Raimundi, Guillelmi de Rehenti, Ademari vicecomitis…". The relationship "proavuo/proavo" in this charter is incorrect in light of the reconstruction shown in the present document. The rather ornate language of these two documents, and the lengthy titles accorded to the donor, suggest that they may be spurious in whole or part. "Guillelmus...Tolosanorum Carcassonensium et Albigensium comes et dux et...Emma uxor eius" donated property to Saint-Pons de Thomières, for the souls of “Pontii comitis patris mei---Guillelmi et matris meæ Adelmudis”, by charter dated 16 Jun 1080, signed by "Raymundus comes et frater Guillelmi comitis prædicti, Bertrandus comes nepos Guillelmi comitis prædicti et filius Raymundi comitis, Guillelmi de Rebenti, Ademari vicecomitis, Bernardi-Pontii de Granoiled, Bernardi-Raymundi de Tolosa, Aymerici de Roquefort...". 1