Main chapel, covered by a cradle vault of stone coffins, with a main altarpiece, over a crypt, forming, below, two chapels, with a stairway to the center of access to the upper level. Chapel on the side of the Gospel, with ashlar tiles of the 17th century pattern and the remaining wall and ceiling covered with carved panels. Back wall with altar. In the center of the chapel, there is the tomb of São Gonçalo, in polychrome limestone, with an image of the saint, with the representation of a bridge at his feet. On the opposite side, the chapel of the Offerings, with the image of the saint. main altarpiece in gilded woodwork, preceded by a level protected by a balustrade, presenting a straight plan, with three axes, topped by undulating cornice, supported by angels inscribed in modillions, topped by volutes, forming a false pediment interrupted by a vegetal composition. Central axis with a lowered arch dressing room, with a domed throne. Lateral axles with corbels and canopies, with the image of São Domingos de Gusmão, on the Gospel side, and São Francisco de Assis, on the Epistle side