The patron saint of Chieri is Our Lady of Grace, celebrated on the second Monday of September.
As early as 1228 the town was divided between two warring factions: the Militi, made up of noble families devoted to Saint William of Aquitaine, who adopted as their symbol a gold leopard on a red field, and the Society of Saint George, protector of popular interests, trade and craftsmanship, who raised the emblem of the saint's cross. The conflicts ceased only in 1347, with Chieri's act of submission to Amadeus VI of Savoy, and the two symbols later merged to create today's town coat of arms. The church of San Giorgio, in a dominant position on the hill where the town's first medieval nucleus arose in 1037, was built in Gothic style in the early 12th century, destroyed by fire in 1412 and rebuilt facing the town; its current facade, flanked by a pagoda-style bell tower, dates from 1752 and is the work of Bernardo Antonio Vittone.
