Dedicated to Our Lady the Blessed Virgin – “Notre Dame” – the small original chapel was operated at first by the Jesuits. Then came the Sulpician Fathers, who in 1657 undertook construction of a larger church. The Sulpician François Dollier de Casson was its architect, and the present-day Notre-Dame Street served as the original site. Its construction, in Baroque style was completed between 1672 and 1683.