A reliquary (also referred to as a shrine) is a container for relics. Relics may be physical remains of saints, such as bones, pieces of clothing, or some object associated with saints or other religious figures. The authenticity of any given relic is often a matter of debate; it is for that reason, some churches require documentation of the relic's provenance.
This elegant double-arm cross once contained fragments of four of the most important relics of Christ’s Passion, namely a portion of the True Cross, a piece of Christ’s sudarium (sweat cloth), and fragments of the reed staff and sponge used by Christ’s tormentors to mock him and give him vinegar for his thirst during the Crucifixion. The identity of these relics and their placement in the cross are indicated by open cavities on the reliquary’s front and accompanying Latin inscriptions on its back.