It has also been proposed as identification of historic Vergegio, named by Braulio of Zaragoza as the birthplace of Saint Millán, although present Berdejo in Aragon is another candidate.
These three are saints have a strong regional attachment: Aemilian, a Visigothic saint, was patron of the nearby monastery; Dominic, 11th century abbot of Silos and one of the most important saints in thirteenth-century Iberia, was born in the town of Cañas, near to Berceo; and Aurea was an anchoress who lived in the monastery of San Millán during the late eleventh century.