Research Notes:

Her parentage and marriage are confirmed by the charter dated 26 Oct 1078 under which "Agnes filia quondam Guillelmi Pictaviensis comitis et relicta…marchionis Petri" donated property to Pinerolo. Agnes´s father is not identified more precisely in any document which has so far been found. However, the reference to "quondam" in the 26 Oct 1078 charter excludes Guillaume VIII Duke of Aquitaine who was still alive at that date. Duke Guillaume VI is also probably excluded as her father, as Agnes would have been over 26 years old at the time of her marriage if she had been his daughter (he died in 1038...). This seems improbable given the usual age of marriage of noble girls at 12 to 15 at the time. Duke Guillaume VII is therefore left as the most likely candidate to be Agnes´s father. According to Europäische Stammtafeln, Agnes was the widow of Ramiro I King of Aragon. Szabolcs de Vajay states that the wife of King Ramiro was the daughter of Guillaume VI Duke of Aquitaine not of Duke Guillaume VII, although no source is cited to support this. From an onomastic point of view, it is surprising that a daughter of Duke Guillaume VI would have been named Agnes. The name appears only in the family of the Comtes de Poitou after the third marriage of Duke Guillaume V with Agnes de Mâcon [Bourgogne-Comté], whereas Duke Guillaume VI was the son of Duke Guillaume V's first marriage. "Adalegida cometissa filia Maginfredi marchionis et relicta quond. Oddonis idemque marchionis" donated property to the monastery at Taurini, in the presence of "domne Agnetis comitissæ, filiæ Wilelmi comitis et relictæ quondam Petri marchionis", for the souls of "Maginfredi patris, Adalrici Astensis episcopi patrui, Berthæ matris et Petri marchionis filii predictæ comitissæ Adalegidæ", by charter dated 4 Jul 1079. "Adalasia comitissa cum nuru sua Agneta et filia eius Agnete" donated property to "ecclesiæ S. Mariæ…Astensis episcopatus" by charter dated 18 Jun 1089. ¹