Pelagius' kingdom initially was little more than a gathering point for the existing guerrilla forces. During the first decades, the Asturian dominion over the different areas of the kingdom was still lax, and for this reason it had to be continually strengthened through matrimonial alliances with other powerful families from the north of the Iberian Peninsula. Thus, Ermesinda, Pelagius' daughter, was married to Alfonso, Dux Peter of Cantabria's son. Alfonso's son Fruela married Munia, a Basque from Álava, after crushing a Basque uprising (probably resistance). Their son is reported to be Alfonso II, while Alfonso I's daughter Adosinda married Silo, a local chief from the area of Flavionavia, Pravia.