Gomelo II was the Bishop of Oviedo during the final years of the reign of Alfonso III of Asturias. He succeeded Hermenegild I probably about 892. Only one document from his episcopate survives, though it was interfered with at a later date by Pelagius of Oviedo

Pelagius of Oviedo

Pelagius of Oviedo was a medieval ecclesiastic, historian, and forger who served the Diocese of Oviedo as an auxiliary bishop from 1098 and as bishop from 1102 until his deposition in 1130 and again from 1142 to 1143. He was an active and independent-minded prelate, who zealously defended the...

. Dated 20 January 905, it is charter

Charter

A charter is the grant of authority or rights, stating that the granter formally recognizes the prerogative of the recipient to exercise the rights specified...

 of the Cathedral of San Salvador signed by a bishop Gomellus along with the bishops Froilán of León, Sisenand of Iria, Nausto of Coimbra, and Reccared of Lugo

Reccared (Bishop of Lugo)

Reccared or Recaredus was a medieval Galician clergyman.-References:* Consello da Cultura Galega , Documentos da Catedral de Lugo,...

. The charter ordered the construction of a castle beside the church in order to house relics—and refugees—during Viking

Viking

The term Viking is customarily used to refer to the Norse explorers, warriors, merchants, and pirates who raided, traded, explored and settled in wide areas of Europe, Asia and the North Atlantic islands from the late 8th to the mid-11th century.These Norsemen used their famed longships to...

 attacks. The cathedral also received as gifts books, ornaments, villages, monasteries, churches, and rents of all kinds, but the jurisdiction over the church of Santa María de Lugo and the towns of Avilés

Avilés

Avilés is a city in Asturias, Spain. Avilés is with Oviedo and Gijón, one of the main towns in the Principality of Asturias.The town occupies the flattest land in the municipality, in a land that belonged to the sea, surrounded by small promontories, all of them having an altitude of less than...

 and Gijón

Gijón

Gijón , officially Gijón / Xixón, is a coastal industrial city and a municipality in the autonomous community of Asturias in Spain. Early mediaeval texts mention it as "Gigia". It was an important regional Roman city, although the area has been settled since earliest history...

 also given appear to be later (forged) additions. A 1612 copy of this diploma was mis-dated 1 February 925, but the list of bishops confirms the date of the copy in the cartulary of Oviedo.

According to a later falsified document of bishop Pelagius of Oviedo

Pelagius of Oviedo

Pelagius of Oviedo was a medieval ecclesiastic, historian, and forger who served the Diocese of Oviedo as an auxiliary bishop from 1098 and as bishop from 1102 until his deposition in 1130 and again from 1142 to 1143. He was an active and independent-minded prelate, who zealously defended the...

, Alfonso III held a council at Oviedo in 899 or 900 and with the approval of a certain "Pope John" (perhaps John VIII

Pope John VIII

Pope John VIII was pope from December 13, 872 to December 16, 882. He is often considered one of the ablest pontiffs of the ninth century and the last bright spot on the papacy until Leo IX two centuries later....

 was intended) raised Oviedo to metropolitan

Metropolitan bishop

In Christian churches with episcopal polity, the rank of metropolitan bishop, or simply metropolitan, pertains to the diocesan bishop or archbishop of a metropolis; that is, the chief city of a historical Roman province, ecclesiastical province, or regional capital.Before the establishment of...

 rank. A document dated 20 January 905 in Pelagius's Liber testamentorum records a large donation made by the monarch to the see of Oviedo and confirmed by Gomelo II. This document is strongly suspect.