On a hill outside Torino
The local ruler, Duke Vittorio Amedeo II of the house of Savoy, went outside the city to do reconnaissance.
Atop the hill of Superga he went inside a small parish church and prayed. He vowed that if they were able to defeat the invaders, he would build a larger church building on that spot.
The French were defeated.
In 1731, a brand-new Basilica opened atop the hill of Superga.