He was the fourth bishop after the restoration of the diocese (1070), which had fallen into abeyance in the tenth century as a result of Viking and Moorish raids.
[1] Pelayo was a Galician nobleman of middling rank, a great-nephew of Count Pedro Fróilaz de Traba.
[1] He had a hand in the founding of the monastery of San Martín de Loureza before 1139, when he granted the church and some tithes to Abbot Pedro Initiense.
[3][4] In 1148 he donated his part of the church at Franza to the monastery of Xuvia, partially as payment for some livestock.
[1] On 31 August 1152, Pelayo was at the royal court, where he employed a royal scribe to write up a donation of land at Pesegueiro to two brothers, Pedro and Lucio, who promised in return to render annually two solidi to the canons of Tui.