He became the tutor (1003) and ultimately father-in-law of Vermudo's successor, King Alfonso V. He maintained peaceful diplomatic relations with the Caliphate of Córdoba until 1004, after which there was a state of war.
Ia menjadi seorang guru (1003) dan akhirnya ayah mertua ahli waris Bermudo, Raja Alfonso V. Ia mempertahankan hubungan diplomatik damai dengan Kekhalifahan Kordoba sampai tahun 1004, setelah masa peperangan.