Ermígio Viegas I of Ribadouro
Ermigio Viegas I of Ribadouro, called O Gasco was a medieval knight of the County of Portucale, feudal lord of Ribadouro, and also governor of Lamego. He was the grandfather of the famous Egas Moniz, the Tutor.
Ermígio was the firstborn son of Egas Moniz I of Ribadouro and his wife, Toda Ermiges da Maia. He inherited the epithet O Gasco from his father, which was common in the family. Documented in 1043 and 1047, in the latter year he is said to have presided over a judgment council, related to the government and administration of “lands” on the left bank of the Douro River, presided over by his uncle, Garcia Moniz de Ribadouro. He owned several properties on both sides of the Douro River, from Baião and Resende to Penafiel and Arouca. He is mentioned to have administered, as lieutenant, several localities in Ribadouro after 1060. Ermígio is believed to have founded, with his brother, Monio Viegas , the Monastery of Pendorada, of which they were the first patrons, a fact that is proven by a document from 1123 which refers to the patronage of the monastery belonging to the descendants of Monio Viegas and Ermigio Viegas.
Ermígio Viegas married, on an unknown date, Unisco Pais, with whom he had:
