The Sulpicians were at first pleased with his appointment, until they realized that he was still under the authority of the Bishop of Quebec. Lartigue found himself at odds with his former Sulpician colleagues. Even apart from the division over the role of the papacy, the Superior of the Seminary apparently feared the loss of power by their community to a prelate of the Church, even one who had been one of their own. He was even refused hospitality at the Seminary. They began to be concerned that the hierarchy in Quebec was seeking to undermine Sulpician influence in Montreal. Notre-Dame was a Sulpician parish. In June 1821, while Lartigue was away visiting rural parishes, the warders removed his episcopal chair from the church. Upon his return, Lartigue was forced to relocate to the chapel of the Hotel-Dieu.