He supported the cause of King Alfonso III of Asturias and, as compensation for his loyalty, in 911 he was elected Count of Coimbra,[6] which was repopulated by his father.
He married Ermesenda Gundesíndez,[8][2] daughter of Gudensindo Ériz (son of Ero Fernández) and Enderquina Menéndez, daughter of Hermenegildo Gutiérrez, thus being his niece. From this marriage the following children were born:[4]
Elvira Arias (died after 962), married Munio Gutiérrez, her cousin, son of Count Gutierre Menéndez and Countess Ilduara Ériz
^Marques, A. H. de Oliveira (2024). História de Portugal. Vol. 1 (Revised by João Alves Dias ed.). Editorial Presença. pp. 79, 81.
^ abcdTorres Sevilla-Quiñones de León, Margarita (1999). Linajes nobiliarios en León y Castilla (siglos IX-XIII). Valladolid: Junta de Castilla y León, Consejería de educación y cultura. pp. 304, 306, 309. ISBN978-84-7846-781-5.