[1] Though he had to face strong pressure on the part of the ambassadors of the Bourbon courts, Pope Clement XIII always refused to yield to their demands to have the Society of Jesus suppressed.
When asked, he told the anti-Jesuit court cardinals that "he recognized in the sovereign pontiff the right to extinguish, with good conscience, the Society of Jesus, provided he observed the canon law; and that it was desirable that the pope should do everything in his power to satisfy the wishes of the Crowns".
According to Thomas M. McCoog SJ, "the Society was losing its international patrons: Austria, Prussia and Russia annexed sections of Poland at the first (of three) partitions in the summer of 1772; Victor Amadeus III, married to a sister of the king of Spain, ascended the throne of Sardinia in February of 1773.
More significant was the loss of Austrian protection: in order to secure a marriage between her daughter Marie Antoinette to the French Dauphin Louis in 1770, Empress Maria Theresa promised not to impede Bourbon efforts at suppression although she herself had nothing against the Jesuits".
[3] However, the pressure exercised by the Bourbons of Spain, Naples, and France, and the passive attitude and tacit consent of Austria brought the negotiations to an abrupt termination.
Clement XIV ultimately yielded "in the name of peace of the Church and to avoid of secession in Europe" and suppressed the Society of Jesus by the brief Dominus ac Redemptor on 21 July 1773.
A second brief Gravissimis ex causis (16 August) established a commission of five cardinals entrusted with the task of informing the Jesuits and handling the many practical problems caused by the suppression.