Exceptionally large and elaborate, this reliquary is one of the finest to have survived from the flowering of Iberian goldsmiths' work during the reign of Ferdinand II and Isabella of Spain (1479–1516). Drawing freely on the rich vocabulary of flamboyant Spanish Gothic architecture, the reliquary is conceptually monumental and visually dazzling. The raised, pierced, cast, and engraved elements provide a variety of reflective values, while the architectural components create exceptional dimensionality and a dynamic interplay of voids and solids. The sheet silver, although regilded, retains the vibrant modulation of its original worked surface. On each of the long ends of the foot is a circular bosse in translucent and opaque enamel, one representing the Pelican in Piety, signifying Christ's sacrifice on the cross, and the other the Lion Breathing Life into His Cubs, symbolizing the Resurrection. As both images related directly to the Redemption of mankind through the Crucifixion, it is likely that this monstrance held a relic pertaining to the Passion. The silver is unmarked, but the concave zone capping the central vessel and the relatively small spire appear to be peculiarities associated with workshops in Zaragoza and, to a lesser degree, Daroca; the treatment of the architectural vocabulary, on the other hand, finds close parallels in Burgos goldsmiths' work.