The tympanum has two registers. On the first there are two inverted semi-circles with decorations (urns, cornucopias and animal figures). Tangent to the arches of the doorways are medallions with classical bust, while on the periphery there are relief imagery. The second register, semi-circular, holds a sculptured group of figures that represents the classical "Misericórdia" symbol, or "Mater Omnium", over a frieze with elevated platform consisting of semi-circular dietes. On this platform is the Virgin Mary, secured by two angels, over figures representing Pope Alexander VI, Father Miguel Contreiras, a bishop and cardinal (all on the right), and Queen Eleonor, King Manuel and two prelated (on the left).