This brocaded textile belongs to a collection of vestments attributed to the cult of Saint Valerius, who was the bishop of Saragossa, Spain, from 290 until 315. During the eleventh century his body was transferred to the Cathedral of San Vicente de Roda de Isábena in Huesca (Aragon), from where relics were dispatched to other churches. The textiles were made to venerate the saint, with the chasuble worn on the occasion of his feast day.