Gonzalo of Sobrarbe and Ribagorza

Gonzalo Sánchez (c. 1020 – 26 June 1043) was the king of Sobrarbe and Ribagorza, two small Pyrenean counties, from 1035 until his death.

On 14 April 1035, according to a document preserved in the monastery of San Juan de la Peña, Sancho III granted Aragon to his eldest but illegitimate son Ramiro.

In the same act the castle of Loarre and monastery of San Emeterio with their dependent villages were detached from Aragon and given to Gonzalo as part of his inheritance.

[3] Gonzalo was present with all his brothers and his brother-in-law, King Vermudo III of León, when Ramiro granted arras (a nuptial gift) to his future wife, Ermesinda of Bigorre on 22 August 1036.

Gonzalo's death on 26 June appears in the necrology of the Sobrarbean monastery of San Victorián, but the year is not recorded and has been the subject of much debate.

A late source, the Chronicle of San Juan de la Peña, places it in 1037, but there is charter of disputed authenticity dated September 1039 that is confirmed by Gonzalo.

The anonymous Chronica naierensis of about 1200, basing its account entirely on the Silense, likewise ignores Gonzalo and blames Ramiro's position on his illegitimacy.