Chigi Chapel, on sketch of Raffaello, it was started in 1513 from
Lorenzetto and completed by Bernini between 1652 and 1656. The Mosaics
of the dome, 'creative God of the firmament with around the symbols of
the Sun and the seven planets', are by Luigi De Pace on sketch of
Rafael.  among the windows scenes of the Creation and the
original Sin painted by Francesco Salviati. .
On the altar 'Birth of the Virgo' by Sebastiano Del Piombo completed
by the same Salviati. Below, 'Jesus and the samaritan', bronzy
bas-relief of the Lorenzetto, 'Abacuc and the angel' [1656-61] 'Daniel
and the lion' [1555-57] the Bernini's sculptures, 'Giona that goes out,
the whale' of Lorenzetto  on sketch of Rafael, 'Elia' begun by
Lorenzetto and finished by Rafael by Montelupo.
the walls side forms pyramid graves of Agostino Chigi and
his brother Sigismondo on Rafael's sketch modified by Bernini. To the
fanlights paintings of Raffaele Vanni.