Sant'Andrea: Interior, nave and crossing under dome

Executed after Alberti's death by Luca Fancelli; dome added in 1733 by Filippo Juvarra. The church has a Latin-cross plan with a broad nave and a domed crossing. The nave is covered by a vast, longitudinal barrel vault. Alberti drew his inspiration principally from antique example, as he makes clear in his letter to Ludovico II Gonzaga, where he referred to the design as a templum etruscum (a temple of Etruscan type). It is likely modeled on the Basilica of Maxentius in Rome. For the first time in Alberti's architecture the internal arrangement of the building is mirrored in the fa\u00E7ade. This is attached not directly to the main body of the church but, as in S Sebastiano, to a frontal block accommodating a portico.