In 912, he took the main role in the Castilian offensive to the river Duero, settling the old villages of Haza, Clunia and San Esteban de Gormaz.
•
Recorded for the first time in 899 as Count of Burgos, soon the region expanded to the eastern mountain valleys enabling Gonzalo to make his fort base in Lara, thus stretching his rule from the foot of the Cantabrian Mountains around Espinosa de los Monteros to the river Arlanza, which therefore became the border with the neighbouring Muslim territories.
•
His name appears for the first time in charter of the Monastery of San Pedro de Cardeña (899), one of the most influential monastic houses later in Castile together with the Monastery of Santo Domingo de Silos.
Castile | Leonel Fernández | Cristina Fernández de Kirchner | Alfonso X of Castile | Kingdom of Castile | Crown of Castile | Alejandro Fernández | Isabella I of Castile | Castile (historical region) | Philip I of Castile | Alfonso VIII of Castile | Vicente Fernández | Ramon Fernandez | Joanna of Castile | Eleanor of Castile | Castile-La Mancha | Alfonso XI of Castile | Pedro Fernández de Castro | Lisa Fernandez | Juan Fernández Islands | Henry II of Castile | Gonzalo Rubalcaba | Gonzalo Pizarro | Gonzalo Fernández de Córdoba | Ferdinand III of Castile | Pops Fernandez | Peter of Castile | John I of Castile | John II of Castile | Vicente Fernandez |
Fernán González (died 970) was the first autonomous count of Castile, son of Gonzalo Fernández de Burgos, who had been named count of Arlanza and the Duero around the year 900, and by tradition a descendant of semi-legendary judge Nuño Rasura.