 The first was to rebuild a large church in the heart of the city, after the destruction of the during the French Revolution, which had housed the statue of Our Lady of the Treille for more than six hundred years.The second was to establish an episcopal see in Lille, which then belonged to the Archdiocese of Cambrai.This creation was considered essential to establish the city's status as a religious capital and to serve the growing population during the period of the Industrial Revolution.