[2] There exists a forged charter purporting to show Gómez, with the title Count, making a donation to the monastery of San Salvador de Oña in 1087.
In the summer of 1108, following the deaths of Raymond of Galicia (1107) and the heir apparent Sancho Alfónsez (at the Battle of Uclés in 1108, where Gómez may have been present), a marriage between Gómez and the new heir presumptive, Raymond's widow, Urraca, was proposed by a faction of bishops and nobles opposed to the king's plan to marry his heiress to Alfonso the Battler, the king of neighbouring Navarre and Aragon.
[11] Gómez was one of the magnates who witnessed the first recorded act of Urraca as queen, on 22 July 1109, and implicitly acknowledged her claim to have been granted "the whole kingdom" (regnum totum) by her father, Alfonso VI, shortly before his death.
His frontier position may explain his own opposition to Urraca's marriage, since he would have competed with the Aragonese when it came to expansion (reconquista) south of the river Ebro at the expense of the Almoravids.
[14] In early 1110, Gómez was present with Urraca and the king of Aragon at the Monastery of Nuestra Señora de Valvanera, where he confirmed a pair of donation charters drawn up in the Aragonese format.