An undated charter names “Petrus Froyle et Rodericus Froyle et Munia Froyle et domna Hermesenda” as the children of "Froyla Ueremudi". [The Nobiliario of Pedro Conde de Barcelos, in a confused account of the ancestry of the Traba family, names "Conde D. Pedro Fernandez de Trava que pobló el castillo de Trava" as son of "El Conde D. Fernan Perez" (stating that he was son of “el Conde D. Pedro Frojaz”) and his wife "D. Briolanja". "…Petrus Froilaz dominator Ferrarie…" subscribed the charter dated 28 Jan 1090 under which "Adefonsus rex Legionis et totius Hispanie imperator atque Fredenandi filius regis" granted privileges to Santiago de Compostela, with the advice of "generis mei comitis domini Raimundi".
Conde [de Trastámara]. "Petrus […Froilaz] et comes et cometessa Gunterede Ruderiquiz" donated "Nemenio", part of which belonged to "comite Froile Menindez" who left it to "suo suprino Froila Ueremudiz" who bequeathed it to "suos filios…[et] sua filia domina Uisclauara…meam germanam", and another part which "comes Froila Arias" had given to "sua filia donna Urraca qui fuit mea mulier" who left "meos filios et suos" one of whom "Froila Petriz" died, to the monastery of Santo Tomé de Nemeño by charter dated 6 May 1105. "…Petrus Frolaci comes…" subscribed the charter dated 16 Dec 1105 under which "Raimundus totus Gallecie consul ac Hispanie imperatoris dni. Adefonsi gener" confirmed the ancient privileges ("fueros") of Santiago de Compostela. "…Petrus Froilaz comes…" subscribed the charter dated 14 May 1107 under which "Adefonsus…Toletani imperii rex…cum…uxore mea Helisabet regina" approved the mint of Santiago de Compostela.
Conde de Galicia: Queen Urraca donated property to León Santa María by charter dated 22 Jul 1109, subscribed by "Petrus Ansuriz Carrionensium comes, Gumez Gunzaluiz Castellanorum comes, Rudericus Munioni Asturensium comes, Froila Didaci Legionensium comes, Petrus Froilaz Gallecie comes, Suarius Ueremudiz consul Gallecie, Aluarus Fanniz Toletule dux, Munio Guterriz maiordomus palacii, Petrus Gunzaluiz armiger regis, Fernandus Gunzaluiz, Adefonsus Telliz, Tellus Telliz, Fernandus Telliz". Queen Urraca granted property to "comiti dno Petro Froyalz et uxori uestre comitisse dne Maiori Roderici de Rarzena" by charter dated May 1112.
He was tutor of the future king Alfonso VII, which subsequently brought into conflict with Queen Urraca against whom he championed her son's rights, eventually arranging the latter's proclamation as king in 1112. "P[etrus] Gallecie comes…cum fratre meo obtimate R necnon sororibus meis…sanctimonialis Munina atque Visclavara" donated "monasterium Sancti Martini de Juvia" to Cluny by charter 14 Dec 1113 confirmed by "Froyla Vimaraci, Menendo Vimaraic, Menendo Solinizi, Comes Gugues, Comes Munio Pelagis, comes Rudericus Veilazi". “Petrus Froile comes in Galletia...” confirmed the charter dated 29 Jul 1118 under which Queen Urraca donated Sobrado “inter Montem Rosum et terram de Speluca”, which King Fernando I had granted to “avo vestro Sigeredo Aluiti et...uxore sue Adosinda Arie”, to “Vermudo Petri et fratri vestro Fernando Petri”. He was named in 1119 as comes Gallecie. 1
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