"Garsea rex…cum genitrice…Tuta regina et cum filiis Sancio et Ranimiro adque Urraka" donated property to the monastery of San Martín de Albelda by charter dated 953, witnessed by "Sancio rex et Ranimiro rex…". "Santio rex simulque frater meus Ranimirus et dompna Urraca regina" confirmed a donation to the monastery of San Millán de la Cogolla by charter dated 971, confirmed by "…Dompna Urraca, eiusdem regis germana, Garsea ipsius regis filius…Furtunio Galindonis dux, sennor Eximino Santionis, Furtunio Garseanis…"... Her parentage and two marriages are shown in Europäische Stammtafeln, but the primary source which confirms that they are correct has not yet been identified. Del Pino assumes that her first marriage is correct when he records that Urraca took the initiative to free Fernando González Conde de Castilla, captured by the forces of King García III in 960, married him and escaped to Burgos. She is not named in any of the documents in the compilation relating to the county of Castile. The timing of her reappearance at the court of Navarre to sign the 971 charter quoted above is consistent with her having been recently widowed from her supposed first husband. Concerning her second marriage, the charter dated 992 under which her brother Sancho King of Navarre donated property to the monastery of San Millán de la Cogolla is signed, among others, by "…Sancio filius Gogelmi comitis…" (apparently Urraca's son by this supposed second marriage). The charter dated 993, under which "Willelmus Sancius comes" restored the monastery of Saint-Sever, also appears to confirm his wife´s royal parentage when it records that "meæ conjugis Urracæ, ex regali stirpe procedentis…" consented to the restoration. "Willelmus Sancius comes et dominus totius Vasconie, cum Urraca sua muliere" donated the church of Sainte-Susanne to the abbey of Saint-Jean de Sorde by undated charter. "Willelmus Sancius comes et dominus totius Vasconie, cum Urraca sua muliere" donated the church of Sainte-Susanne to the abbey of Saint-Jean de Sorde by undated charter. "Willelmus Sancius comes et dominus totius Vasconie, cum Urraca sua muliere" donated the church of Sainte-Susanne to the abbey of Saint-Jean de Sorde by undated charter. The Historia Abbatiæ Condomensis quotes a charter dated 29 Jul 1011 under which "Ugo…Præsul, secundum lineam carnis eidem Duci propinquis et affinis" donated property to the convent of Condom, for the souls of "meorumque parentum, item Garsiæ-Sanctii Comitis et filii sui Sanctii-Garsiæ Comitis, et Guillermi-Sanctii Comitis et Gimbaldi Episcopi, et Guillelmi Comitis, et Garsiæ Comitis, et Bernardi-Guillelmi Comitis, et Urachæ Comitissæ".
She died before 3 Apr , the date of the charter under which her son "Bernardus Willelmus comes…cum germano meo Sancio" confirmed, "annuente beatæ memoriæ matre mea Urraca", the foundation of Saint-Sever by "genitor meus Willelmus Sancio comes", this wording suggesting that Urraca died only shortly before the confirmation especially as the document is purportedly signed by "Urracæ comitissæ". The necrology of Saint-Sever records the death "IV Id Jul…1041" of "Urraca comitissa". However, either the year is incorrect or this entry refers to another "Urraca comitissa". Even without the evidence of the 3 Apr  charter, Urraca would have been well over 90 years in 1041 if this entry refers to the wife of Guillaume Sancho. 1