As part of his policy of alliances aimed at consolidating his image as
defender of the faith,
Charles Emmanuel I of Savoy purchased the site in 1581 and donated it to the
Order of Friars Minor Capuchin, who were at that time housed in the district of
Madonna di Campagna. Work on the building began in 1583, based on an initial design by Milanese engineer Giacomo Soldati, and was later continued by Ludovico Vanello. Soldati's project was in the
Renaissance style, modelled on a classic temple. As early as 1590, with construction underway, the Capuchin friars were able to move into the monastery, and in 1596 were authorised to officiate at Mass while the church was still under construction. Two years later, work came to a halt at the level of the cornice, both due to a lack of funds and the arrival of the
plague in Turin. Construction was resumed in 1610 under architect and military engineer
Ascanio Vitozzi, who completed the design of the church as a
Greek cross, freeing up a small area for the current entrance
vestibule, plus a
choir room behind the
high altar. He added an imposing octagonal masonry
drum, terminating in a high
lead dome, moving away from the
Renaissance style and towards a
Mannerist design. However, Vitozzi died in 1615, and work had to be continued with the architect
Carlo di Castellamonte, who changed some elements to a classic
Baroque style. In 1630, a new epidemic of the plague arrived and slowed down the completion of the work. It was restarted and completed by Carlo's son,
Amedeo di Castellamonte but the
Piedmontese Civil War prevented its consecration. The interior was
frescoed by
Isidoro Bianchi and a number of valuable paintings were added in the 18th century. Under the altar of a side chapel holds the body of Saint
Ignatius of Santhià. The high altar originally bore
Orazio Gentileschi's
Assumption of the Virgin, now in the
Turin City Museum of Ancient Art. The church was not consecrated until 22 October 1656, on the occasion of a brief visit by
Queen Christina of Sweden, who had recently converted to
Catholicism and was passing through Turin. == From the 18th century to the present day ==