Baroque chapel built in 1692 by private initiative. and under private administration. It has a single nave with an axial portal where there is a long inscription related to its institution, over which is a cornice that supports a window with a tapered cut at the top for more light. After a long period of abandonment and lying in ruins, it was rebuilt in the 1940s, with an added storey for habitational use; on the ground floor, a shop was installed. These works profoundly altered the volume and spatial organisation of the temple, but one can still recognise the old typology, as the elegant corners in the form of Tuscan pilasters are retained; inside, only the basin for holy water remains.

The current car park and overlook at the entrance to the village is locally known as the Bulwark square, or Baluarto, in its popular form. This platform does not appear to correspond in fact to a bulwark – a protruding polygonal element designed to defend the flanks of the corners of the fortifications with artillery and which the pieces today would stage –, because their layout in an arch only presents the angular extremities. This solution appears to be inspired on this military architecture, but it lacks the historical veracity that the place name stubbornly looks for. Even so, it may be a reminder of a firing platform used in a late episode of the Peninsular Wars (20th century).

In this rocky, flat corner of the east side of the castle, we find the ruins of the Chapel of S. João. Little or nothing is know of it. Remnants of 16th-century ceramic tiles found in its ruins indicate that it would have existed in that era and that in the mid-18th century it would have supposedly still been open for worship, as it is included on a list of the religious buildings of Monsanto. The remains of the walls reveal a small temple made up of a nave and main chapel, with a single axial door; the triumphal arch is a recent reconstruction, poorly done and out of proportion. Today, it serves as a magnificent outlook for viewing the landscape of the area of Castelo Branco and its surroundings, or for simply getting a feeling for the space.

A simple building, dating from the 18th century, made up of a nave and main chapel, with distinct roofs. The main facade is set off by corners in the form of pilasters, finished off by a gable with a Latin cross at the peak; it has a doorway with a depressed arch and on the right side there is a small barred window. Inside, the semi-circular triumphal arch is flanked by an interesting polychrome image on the side of the Epistle, although it is a recent addition. After a long period of lying in ruins, it was recently restored to its supposed original form. Nearby, a straight wall that is accessed by two ramps was part of a battery for four cannons, integrated in an inner protected area inside the main gate, built in the early 19th century.

This Manueline-style chapel has a portal with four archivolts The chancel boasts a gothic-style dome. The artwork on the façade is worth noting. It has a Manueline portal with an arch with four archivolts with two shafts topped by fleurs-de-lis on either side. There is a bell tower above the cornice. There is a simple portal in the north side façade. The cemetery beside the chapel dates back to 1836.

The chapel today is isolated in the northeast area of the castle, and Monsanto’s Medieval settlement grew up around it. The floor plan of the temple has a single nave and chancel. The facade has a doorway with a semi-circular arch. The sparse decoration is only lively in the zoomorphism of the imposts and otherwise only in the modillions, whilst remains of painted mortar hint at supressed ornamentation. The bell tower was built on an overlooking rocky outcropping. It construction dates from the late 12th or early 13th centuries. Older findings, however, point to a previous temple. Its good present-day appearance results from restoration works in the mid-20th century: a simple building divested of archaic architecture, justified by its outlying border location, which was not totally pacified at the time.