The altar has a pair of Composite columns in brecciated marble with gilded capitals. The columns support two fragments of a split and separated segmental pediment. The columns support two fragments of a split and separated segmental pediment. Into the gap is inserted a tablet with a winged putto's head, and this has its own triangular pediment. A pair of stucco angels recline in the spandrels of the arch, the pilasters and archivolt of which are in red marble.