At the recommendation of the Vicar General of Verapoly, Mons. Joseph Sebastiani, Pope Clement X appointed Bishop Thomas de Castro, a Goan Theatine and Bishop of Fulsivelem, as the Vicar Apostolic of Propaganda Fide in the Vicariate of Canara on 30 August 1675, for the purpose of providing spiritual leadership to the Canara Christians. After his consecration, he first went to Calicut and then moved to Mangalore, where he served from 1677 to 1684. In 1677, Bishop de Castro entered into a conflict with the Archbishop of Goa, Dom Frei António Brandão, for disregarding the Padroado. Consequently, they did not cede the jurisdiction to him despite the Pope's letter of appointment. The Padroado–Propaganda conflict which ensued divided the Catholics of Canara into two sides—those who recognised the authority of the Padroado Archbishop in Goa versus those who supported de Castro.