FERNANDO Flaínez, son of FLAÍN Muñoz & his first wife Justa Fernández (-after 1054). "Justa y sus hijos Monnio, Fernando, Pedro, Elvira y Marina Flaginez" donated "Villa Uaica junto al rio Porma…tierras en Campo Molle, de la villa de Rezmonde…y de la mitad…en Villa Ratario" to Sahagún by charter dated 11 Mar 1003[820]. He joined with his brother Munio in his 1012 document[821]. 999/1054. 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. "…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"[822]. "La condesa doña Elvira y su marido el conde Fernando Flainz" a monastery "in territorio Saliame…in Oselia…Santa Maria" to Sahagún by charter dated 27 Apr 1028[823]. "…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[824]. 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 he killed King Vermudo in battle at Tamarón, holding out until 21 Jun 1038, although he subsequently accepted the new royal government[825].
m ELVIRA Pélaez, daughter of conde PELAYO Rodríguez & his wife Gotina Fernández de Cea. "La condesa doña Elvira y su marido el conde Fernando Flainz" a monastery "in territorio Saliame…in Oselia…Santa Maria" to Sahagún by charter dated 27 Apr 1028[826]. Her parentage is suggested by the charter dated [13 Nov 1028] under which "Comite Fredelando Pelaioz…cum coniuge mea Gelvira et mater mea donna Gutina" confirmed a donation of property to the monastery of San Millán de la Cogolla, with the consent of her son "neptus mei Fernando Fredinandiz"