The inner façade was designed by Gian Lorenzo Bernini for Pope Alexander VII and it was released on the occasion of the arrival in Rome of the abdicant queen Christina of Sweden, on December 23, 1655: the occurrence is commemorated by the inscription carved on the attic of the inner façade together with the coats of arm of the Pope's family (the six-pieces mount under the eight-rays star, the emblem of the House of Chigi.
