the small baptistery with a fresco depicting the Baptism of Christ, 18th century azulejos and 16th century Manueline wrought-iron railings. In the middle of the central nave there is a large Baroque altar with a polychrome Gothic statue of a pregnant Virgin Mary (Nossa Senhora do O) (15th century); facing the Virgin there is a polychrome Renaissance statue of the Archangel Gabriel, attributed to Olivier of Ghent (16th century). The main chapel was totally rebuilt between 1718 and 1746, a work sponsored by King John V. The architect in charge was João Frederico Ludovice, a German who was royal architect and who had previously designed the Monastery of Mafra. The style favoured by the King and his architect was Roman baroque, with polychrome marble decoration (green marble from Italy, white marble from Montes Claros, red and black marble from Sintra) and painted altars. Although its style does not really fit into the mediaeval interior of the cathedral, the main chapel is nevertheless an elegant baroque masterpiece. The main altar has sculptural decoration by the Italian Antonio Bellini. Portuguese sculptor Manuel Dias is the author of the crucified Jesus over the altar, based on a drawing by Portuguese painter Vieira Lusitano. The painting of the main altar was executed by the Italian Agostino Masucci. The 13 panels of the original painted Flemish retable of the main chapel can be seen in the Évora Museum. The retable was commissioned around 1500 to a workshop in Bruges by bishop Afonso de Portugal. The chapel (Capela do Esporão) in the left transept was rebuilt in the 1520s in Manueline style. It now has a beautiful Renaissance marble portal with a marble sculpture by Nicolau Chanterene, Gothic vaulting and a Mannerist altar with the painting "Descent from the Cross" by Francisco Nunes (c.1620). The chapel in the right transept houses the tomb of the humanist André de Resende (16th century). In these chapels are also buried João Mendes de Vasconcelos, Governor of Luanda during the reign of Manuel I, and of Álvaro da Costa, ambassador and armorer of King Manuel. Cloisters The cloisters of the cathedral were built between 1317 and 1340 in Gothic style, and again shows the influence of the cloisters of Lisbon Cathedral. Despite the use of Late-Gothic tracery, the use of granite in its construction gives it a heavy-looking overall impression. Each corner of the cloister gallery has a marble Gothic