The chapel of the Succorpo is extremely ambitious, because it is dug under the very unstable apse, moreover from the religious point of view it is intended as a "confessio". Also known as the Confession of St. Gennaro or Carafa chapel, it was built in Renaissance style under the high altar of the Cathedral of Naples in 1497. The room is rectangular, with three naves marked by ancient columns also on the walls with pilasters and Ionic capitals and with side niches that are mirrored on the front. Everything ends in a scarcity, which houses the relics of the Saint and the marble statue of Cardinal Oliviero praying in the nave. The windows are oblique to let in as much light as possible, while the ceiling is even more ambitious: in coffered flat marble (the first of its kind) with a precise iconographic design with the Madonna, the Fathers of the Church and the Patriarchs of the Church of Naples enclosed in clipei.
