In the 16th century, the only miliary use of the castle hill led to the displacement of the high city to the low city. Sainte-Réparate then took the role of cathedral, instead of Sainte-Marie on the hill. This new status requires a resumption of the building, begun in 1650 by the architect of Niçois Jean-André Guibert. The Baroque style is adopted but its decline is relatively sober, reinforced by the lack of vaulted decoration. The plan takes over the Roman churches of the 17th century, including Sant’Andrea della Valle (Corso Vittorio Emanuele II). The dome and the façade are similar to the Genoese Baroque. The facade, made only in the 1820s, was recently colored. The initials of the princes of Savoy, present in the nave and the choir, exalt their glory and recall the singular history that has linked Nice and Piedmont for more than five centuries.