Gonzalo Téllez

[5] Near the end of his reign, King Alfonso III of Asturias (866–910) reorganized these easternmost lands and divided them into counties, appointing as governors of each of these his most trusted counts.

[7] Following the death of the Emir of Córdoba Abdullah ibn Muhammad al-Umawi in 912, his successor Abd-ar-Rahman III first had to dedicate his efforts to quashing the rebels of Al-Andalus.

[10] On 24 September 902, Gonzalo and his wife Flámula (also called Lambra in other documents) made a donation to the Monastery of San Pedro de Cardeña consisting of agricultural land in Pedernales.

[2] [12] Gonzalo Téllez and his wife Flámula appear in the foundational document of the Monastery of San Pedro de Arlanza on 12 January 913.

Historian Justo Pérez de Urbel suggested that Muniadona and Gonzalo's wife, Flámula, were sisters, but the two charters on which he based this hypothesis are clearly spurious.

[15][6] He probably died between that date and May 919 when Munio Vélaz, possibly a son of Vela Jiménez, appears as Count of Álava.