"Iusta Christi ancilla…cum filiis meis Monnio Flainez, Fredenando Flaginez, Petro Flaginez, Geluira et Marina" donated "Uilla Uaica…[subtu]s Penna Meane" to Sahagún, for the soul of "viro meo Flagino Monniz", by charter dated 11 Mar 1003. "Iusta Pepiz[i]…gum filios meos Munnio Flainici et Fredenando Flayniz et Pedrum Flainizi et Gylloira" granted "mediedadem in villa…in terredorio Noanticam in locum…iustas Sanctum Martinum…qui fuit de filia mea Marina que abuit…cum suo iermano Pedru Flainizi" to "nepto meo Flaino Pedrizi", in return for "villa de Uaica" which she donated "ad frater de Parameno" for the soul of "viro meo Flaino Monizi", by charter dated 15 Jul 1009. He joined with his brother Munio in his 1012 document. "Munnio Roderiquiz…cum coniuge mea Razel" donated the monastery of Santiago y San Miguel Arcángel, León and other properties, including "la villa de Mansilla Mayor…fuit…de genitore meo Ruderigo Muniz", to León Cathedral by charter dated 12 Nov 1012, witnessed by "…Munnio Ruderiquiz dux, Munnio Munniz, Pinniolo Scemeniz, Fredenando Flainiz, Petro Froilaz, Petro Flainiz". Alfonso V King of León granted property to "Sarracini Ariani" by charter dated 17 May 1018, subscribed by "Vegila Ennegoniz, Munniu Roderici, Fredinando Flaginiz, Munnio Munioni, Munnio Ruderici, Pelagius Froylani armiger reg[is], Albarus Ordonii, Nebocianus Vegiliz, Petrus Munnioni, Iohanni Munnioni". “...Fredenando Flaginiz...” confirmed the charter dated 18 May 1019 under which Alfonso V King of León granted "vilas...in Ual de Lorma in tereturio Leonesis", confiscated from “Cotina Fernadiz et filium suum Fredenato Pelagiz...abesaris nostris...”, to "Petro Flaginizi et uxore sua Bronildi". “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.
Conde 1028. He supported Alfonso V King of León against rebellions by the nobility during the early years of his reign. Tenente of la Torres de León and governor of the city. He founded the monastery of Pereda 26 Feb 1020 jointly with his wife, and their children Flaín, Oveco, Pedro, Pelayo, Munio and Diego. Alfonso V King of León granted property at Villaturiel to "fidelem et notarius meus Sampirus presbiter" by charter dated 13 Nov 1023, subscribed by "…Ordonius prolis Ueremundi principis, Munius Ruderiquiz, Rudericus Velaz, Petro Flainiz, Arias Pinnioliz diaconus…Muniu Munneonis, Fredenando Flainiz, Petro Fernandiz, Petro Feroilaz". “Nunnus Moniz, Fredenandus Flaginiz...” confirmed the charter dated 2 Aug 1026 under which "Didacus Fredenandiz et uxor mea Marina et filiis nostris" donated "Uilla Reuelle...in Ualle de Ratario...hereditate que fecit Uincenti ad Fafila Olaliz avius istius Didaco Fredenandiz" to León Cathedral. "…Federnandus Flainiz comes…" subscribed the charter dated 1 Mar 1028 under which "Tarasia proles Ueremudi principis et xristi ancilla" donated property in León to Santiago de Compostela, for the soul of "genitricis mee dive memorie dne. Giloire regine". "Geluira comitissa…cum viro meo comite Fernando Flainz" exchanged "in territorio Saliame locum…in Oselia ecclesia…Sancta Maria" for "uno busto…Rio Torto" with Sahagún by charter dated 27 Apr 1028. "…Fernandus Flainiz…" subscribed the charter dated 15 Nov 1028 under which "Ueremudus proles Adefonsi principis et Geluire regine" donated "villam meam…Cordario que fuit avorum et parentum meorum Menendi et dne Tote" to Santiago de Compostela. “Fernando Flaginiz comes...” subscribed the charter dated 17 Feb 1035 under which King Vermudo III recognised the church of Palencia and made donations. He supported Sancho "el Mayor" King of Navarre in his war against Vermudo III King of León in 1034, although he barricaded himself in the city of León against Fernando I King of Castile after killing King Vermudo in battle at Tamarón. He held out until 21 Jun 1038, although he subsequently accepted the new royal government. “...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”. “Fredenandus Flaginiz comes, Petrus Flainiz comes...” [signing first and second] subscribed the charter dated 1 Oct 1047 under which Fernando I King of Castile confirmed properties to the bishop of León. 1
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