patron of the bishop, Pope Sixtus IV. The Latin inscription also mentions the Pope: "Ioannem de Montemirabili hic sepultum, intelligentia apostolicum abbreviatorem, fides referendarium secretum, probitas Sixto IV. Pontefici Maximo familiarem, religio episcopum Vasionensem fecit, quibus perfunctus septuagenarius obiit 4 Junii 1479. Haec, si consideres, satis admonent." (Ioannes de Montemirabilia is buried here, intelligence made him abbreviator apostolic, faith secret referendary, probity the familiar of Pope Sixtus IV., religion the Bishop of Vaison, died as a septuagenarian on 4 June 1479. These, if you consider, admonish sufficiently.) The floor of the chapel is paved with Renaissance maiolica tiles in a pattern of interlaced octagons and a lozenge border. The altar and the altarpiece The Baptism of Christ on the altar was painted by Pasquale Rossi and was first mentioned in the sources in 1674. It is one of the few public works of the Vicentine painter in Rome. The lower part of the painting is seriously damaged due to the burns caused by the votive candles on the altar ledge. The biblical scene is set in a dark, lyrical landscape. The menacing sky with the dense clouds and the simple log cross by the side of the two embracing, vivacious little angels alludes to the earthly fate of Jesus. While pouring water on the head of Christ, John turns his head towards the dove of the Holy Spirit and the figure of God surrounded by angels. The gestures of Jesus express humility and the acceptance of his destiny. On this painting "De Rossi demonstrates a stylistic maturity in the field of ecclesiastical and devotional painting, a field sometimes neglected by the critics", states Ilaria Miarelli Mariani. The painting is set in a simple stone frame. Like the other later additions in the chapel the altarpiece is too large for the space delineated by the original painted architecture. Above there is a small fresco of the Madonna and the Child Holding a Globe with the figure a bearded donator (?) in a rectangular niche framed by painted laurel garlands. The altar is a simple block of marble with a cross bottony on its front. The slab of the ledge is decorated with a finely carved relief of the Sudarium and an almost invisible ornamentation of candelabra, oak leaf festoons, ribbons and scallops. On the bases of the stone frame of the altarpiece there are two reliefs depicting the coats-of-arms of Cardinal