Career
Born in a poor quarter of Cangas de Tineo, now called Cangas del Narcea, the main city of Asturias, under the Crown of Castile, as a boy Carvallo became a Benedictine monk at the nearby Abbey of San Juan Bautista de Corias. In 1601 he transferred for a short time to a monastery in the Province of Leon. After his return to Asturias, he became Rector of the College of San Gregorio in Oviedo.
With the college"s development into the University of Oviedo in 1608, Carvallo became the Humanities professor at the new institution.
Carvallo wrote poetical essays, but his deep works about the ancient history of Asturias still remain a highlight in Asturian historiography. Many of his manuscript originals are still preserved in the Real Academia de la Historia (Royal Academy of History).