Reliquaire des St. Lucien, St. Maxien et St. Julien
Paris, 1261-1262
Argent repoussé, ciselé et doré
Provient du trésor de la Sainte-Chapelle de Paris
Don Mme Timbal, 1881
Cl. 10746

Which can be roughly translated as:

Reliquary of St. Lucien, St. Maxien and St. Julien
Paris, 1261-1262
Engraved and gilded silver
From the treasury of the Sainte-Chapelle de Paris
Donated by Ms. Timbal, 1881

Three apparently beheaded saints in one reliquary! St. Lucien (died ca. 290 AD) founded the diocese of Beauvais, about 50 miles north of Paris. He was decapitated along with his two disciples, Maxin and Julien, on Montmille hill just outside of Beauvais by three assassins sent by the Roman Emperor. According to legend, he picked up his own head and walked back toward town.

More information on reliquaries can be found at Wikipedia and at the Metropolitan Museum of Art site.