Work began in 1875 and the new church was consecrated in 1894 as Saint James Cathedral, after Saint James the Great, the patron of the parish the church served. At the time it was the largest church in Quebec. It was made a minor basilica in 1919 by Pope Benedict XV. It was rededicated in 1955 to Mary, Queen of the World, by Pope Pius XII at the request of cardinal Paul-Émile Léger. (The pope had proclaimed this title for Mary in his 1954 encyclical "Ad caeli reginam".)