The sarcophagus below, the oldest monumental tomb in the chapel, is the funeral monument of Cardinal Giovanni Battista Mellini, the Bishop of Urbino and the younger brother of Pietro Mellini. Giovanni Battista played an important part in the reconstruction of Saint Peter's Basilica during the reign of Pope Sixtus IV. The funeral inscription mentions his mission as papal legate to Milan in 1477. The monument was originally in old St. Peter's, then dismantled by Cardinal Savio Mellini in 1698 who appropriated the architectural frame for his own tomb and placed the effigy of his forefather below the new monument. This effigy lies on a bier decorated with richly handled fruits and flowers.