Pope from 1700. In the political sphere he met with little success, and in the Treaty of Utrecht (1713) his rights in Sardinia and elsewhere were ignored. His condemnation of Jansenism in ‘Vineam Domini Sabaoth’ (1705) was followed by the condemnation of P. Quesnel's work in 1708 and by ‘Unigenitus’ (1713). In the dispute between the Dominicans and the Jesuits over the Chinese Rites, he supported the Holy Office which censured the opinion of the Jesuits. In 1708 he made the feast of the Immaculate Conception of the BVM one of obligation throughout the Church.