[1] In a document from 947, Fortún is described as the guardian or tutor of the young Sancho, who was the heir to Aragon through his mother Queen Andregoto Galíndez.
Second, he suggests that he married Belasquita, a younger daughter of Count Galindo Aznárez II of Aragon, and was the grandfather of Andregoto (fl.
[2] Fortún is first mentioned in a document dated to 943 in the cartulary of the monastery of San Juan de la Peña.
The dating clause specifies that the charter was drawn up while "Fortún Jiménez and his charge, the lord king Sancho, [were] reigning, holding Aragon.
[2][4] Writing in 1571, Esteban de Garibay recognized Fortún as the last count of Aragon before the kings of Pamplona took direct control.