Saint Jerome and Saint John the Baptist, respectively. The supporting corbels are decorated with little angels holding the coat-of-arms and, at the side of the king, an armillary sphere and, at the side of the queen, three blooming twigs. Renaissance elements include angels in Roman garb, cherubs, the detail and realism of the kings and the nude study of Saint Jerome. Throughout the monastery there are representations of Saint Jerome, in paintings, sculptures and stained glass. There are three important examples: O Penitente no deserto (The Penitent in the Desert), located in the sub-chorus, near the tomb of Vasco da Gama, showing an emaciated saint in the desert, with a rock in his hand, while meditating in front of a crucifix; O Estudioso na sua cela (The Studious in his Cell), showing the saint seated at his workplace encircled by open books; O Doutor da Igreja (The Doctor in the Church), located in the high choir, depicting a solemn Saint Jerome standing in the red robes and hat of a cardinal. The saint is always accompanied by a lion and bible. Interior Diogo Boitac laid the foundations for this three-aisled church with five bays under a single vault, a clearly marked but only slightly projecting transept and a raised choir. The hall church layout is composed of aisles and nave that are of equal height. Boitac built the walls of the church as far as the cornices and then started with the construction of the adjoining monastery. Juan de Castillo, a Spanish architect and sculptor, continued the construction in 1517. He completed the retaining walls and the unique single-span ribbed vault, a combination of stellar vaulting and tracery vaults spanning the 19-metre (62-ft) wide church. Each set of ribs in the vaulting is secured by bosses. The bold design (1522) of the transversal vault of the transept lacks any piers or columns, while Boitac had originally planned three bays in the transept. The transept's unsupported vault gives the visitor the impression that it floats in the air. Castilho also decorated the six 25-metre-high, slender, articulated, octagonal columns with refined grotesque or floral elements typical of the Renaissance style. The construction of this late-Gothic hall is aesthetically and architecturally a masterwork: it augments the spatial effect of this vast building. The northern column closest to the transept there is a medallion that may have been intentionally included as a portrait of