The central entrance consists of a wide rectangular void, framed by an elliptical archivolt molding. It is of Gothic style with a pointed archivolt decorated with tracery. Over the arch is a dressed and moulded stone archivolt ending in rosettes. A two-lined inscription is written on the first archivolt of the door. In the apse it opened three semicircular windows with archivolt and chambrana. These vertical elements can also be used to support a recessed archivolt around a doorway. The upper level is illuminated four large semicircular openings lined with strip under supervision archivolt. The archivolt to the west represents the tree of life. The carvings on the archivolt are notable for depicting a very early Arthurian scene. The arch has a unique arcade, in which the archivolt is supported by pilasters. The double archivolt is divided into two equal parts by two heads. It has archivolt and keystone patterns to match the main entrance. This punishment of muteness is referred to in the archivolt reliefs. An archivolt is supported by Corinthian twin engaged columns. Bands of molding surrounding the tympanum are referred to as the archivolt.