He is first recorded in medieval charters in 1045 and appears in 1053 confirming a donation by King Ferdinand I of León to the Monastery of San Pelayo in Oviedo.
[1] In 1075, he and his brother Vela Ovéquiz were engaged in a legal dispute with the bishop of Oviedo on account of the Monastery of Tol.
[1] This monastery had been donated previously to the Cathedral of Oviedo by Gontrodo Gundemáriz, daughter of Count Gundemaro Pinióliz.
Even though he did not hold the title of count, he acted as the judge in a legal proceeding in 1087 involving the abbot of the Monastery of Lorenzana and the bishop of Mondoñedo.
[4] Married to Jimena Peláez, daughter of Count Pelayo Froilaz "the Deacon" and countess Aldonza Ordóñez, daughter of the Infantes Ordoño Ramírez and Cristina Bermúdez,[1][8] the offspring of this marriage were:[9][b] They could have also been the parents of Sebastián Bermúdez who does not appear in any transactions executed by his siblings but whose filiation is confirmed in Galician charters.