This tomb commemorates Gérard de Conchy, Bishop of Amiens from 1247 until his death in 1257. The monument consists of a recumbent effigy carved in stone, representing the bishop vested in liturgical garments and wearing a mitre, his head resting on a cushion in the conventional manner of 13th-century episcopal tomb sculpture.

The effigy lies beneath a shallow architectural canopy, framed by columns at either side, creating a niche that emphasizes both the dignity of office and the permanence of memory. The front of the tomb chest is decorated with a continuous band of quatrefoils, a restrained but elegant ornamental scheme characteristic of mid-13th-century Gothic funerary monuments.

Gérard de Conchy was a companion of Louis IX during the Seventh Crusade (1248–1254), a fact that situates the monument within the wider political and spiritual ambitions of Capetian France. He was also the subject of the satirical poem De Vetula by Richard de Fournival, an unusual literary afterlife that reflects his visibility within contemporary intellectual and courtly circles.