“Fredenandus Flayniz et eius coniuge Geloire” donated “uilla...Pereta decurrente alueo Estola”, and property “in Saliamne in...hereditate qui fuit de Fredenando Uermudiz et Flauio Moniz avii et patris nostri”, to the monks of San Martín, confirmed by “fratres Flaino Fernandiz, Oueco Fernandiz, Petro Fernandiz, Pelagio Fernandiz, Munio Fernandiz, Didaco Fernandiz”, by charter dated 26 Feb 1020. “...Fredinando Flaginiz comite...Petro Flaginiz, Flagino Fredinandiz...” witnessed the charter dated 24 May 1038 under which Fernando I King of Castile granted “castellum...Vierbele” to “Garcia Eneconis”.
Conde 1038. "…Flagino Fernandiz, Munio Fernandiz…" subscribed the charter dated 17 Feb 1039 under which Fernando I King of León donated property to the monastery of San Pedro de Cardeñas. "Flaino Fernandiz et uxor mea domna Sancia" donated "villa que fuit de…comitissa domna Flamula…in loco…Turio" to León Cathedral by charter dated 28 Oct 1046. "…Flagino Fernandiz, Munio Fernandiz…" subscribed the charter dated 31 Aug 1050 under which Ferdinand I King of Castile confirmed the union of the monastery of San Martín del Río with San Pedro de Cardeñas. "Fronildi prolem Pelagii" donated "monasterios…de Uerga…Sancti Iohannis…in ripa fluvii Estole partem terciam que fuit de avio meo Fredenando Veremudiz et in Sauero…Sancti Felicis" to León Cathedral by charter dated 1058, confirmed by "Flaino Fredenandiz comes, Martino Flaginiz, Didaco Petriz, Petro Romaniz…Petrus Gundisaluiz". It appears that he led a rebellion against Fernando I King of Castile and León in 1061, for which his property was confiscated. Alfonso VI King of Castile donated "hereditates quos ganabit pater meus de comite Flagino Fredenandiz…secus flubio Estola, territorio Aquilare" to "soror mea domina Urracca prolis Fredenandiz" by charter dated 15 Oct 1071. 1