The inscription around the porch architrave is taken from Psalm 72: SUSCIPIANT MONTES PACEM POPULO ET COLLES IUSTITIAM ("The mountains shall bring peace to the people; and the hills, justice"). This reference to the 'mountains' of the coat of arms of the Chigi family, to which Alexander VII belonged, is presumably an allusion to the benefits of his papal reign. Oak leaf motifs, another Chigi family emblem, can also be found on the facade. On the upper facade, Cortona had the curved travertine panels cut to make grained matching patterns, in an unusual use of this particular material. Through the tall central window, the circular window of the 15th century church facade is visible.