On the lower storey are colossal statues of the twelve Apostles, most of them portraits, the S. Thomas being that of the sculptor Lassus. The gables of the upper storey support Angels with the instruments of the Passion. The crockets of the spire are _fleurs-de-lys_, and the whole is resplendent with gilding. The summit of the _chevet_ is surmounted by a huge Angel, in lead, holding a processional cross. There was an idea, never carried out, of making this statue turn round mechanically upon a pivot during the twenty-four hours, that it might present the symbol of salvation successively to all quarters of the city. The masks upon the pedestal of this figure are all portraits of the artists and workmen engaged upon the restoration of the chapel, posing as the Kings of France. The oratory, erected by Louis XI., between the two buttresses of the fourth bay, upon the south side, is decorated with niches and corbels of human heads. The vaulting of the lower chapel is supported by fourteen single-shaft pillars, surrounded by foliated capitals of various designs. The walls are decorated with arcading, terminated at the east end by an apse. The two columns without capitals were added at the same time as the apsidal tribune in the upper chapel. The decoration is in imitation of the original 13th century work, some of which, a fragment of an _Annunciation_, was discovered in removing the remains of some later work in a style utterly at variance with the architecture, by Martin Fréminet, painter to Henri IV. and Louis XIII. In 1691 the tracery of the windows and the stained glass were destroyed and replaced by white in order to give extra light. Formerly there were seven altars and a font in the lower chapel, Boileau, whose father had a house in the court of the palace, being amongst those who were baptised there.