Background
His parents were Count Aloito Gutiérrez and Argilo Alóitez, daughter of Alóito and Paterna, the founders of the Monastery of Cines in the territory of Nendos, A Coruña.
His parents were Count Aloito Gutiérrez and Argilo Alóitez, daughter of Alóito and Paterna, the founders of the Monastery of Cines in the territory of Nendos, A Coruña.
He had three brothers. Gundesindo Alóitez, Bishop of Iria Flavia, Arias, and Count Gutierre Alóitez. In 920, he was named Count of Présaras by King Ramiro II whom he served as his mayordomo mayor from 937 to 949.
In 958, Hermenegildo and Paterna transferred the county of Présaras to the monastery which they had founded and, in that same year, he retired there where he lived as a monk the rest of his life.
He died before 10 December 966 and was buried at his monastery.
This monastery was inherited by his descendants, members of the House of Traba, and nearly two centuries later, in January 1142, two of the most relevant members of this lineage, the brothers Fernando and Bermudo Pérez de Traba, handed it over to the Cistercian monks.