On march 22, 1833, the regency of Brazil in the name of the emperor, by virtue of the privileges of ecclesiastical patronage which the crown enjoyed, appointed Dr. Antônio Maria de Moura to the See of Rio de Janeiro, vacant since the death of the eighth bishop, Dom José Caetano da Silva Coutinho, on January 27, 1833. In accordance with the usual practice, the regency petitioned Pope Gregory XVI on April 30 of the same year to confirm the appointment by sending the appropriate bulls of institution without which (since collation is effected solely by institution of the Roman Pontiff) the bishop-elect could not be consecrated and enthroned and, in the case of Brazil, could not exercise jurisdiction over the diocese or administer it. When Gregory refused to confirm Dr. Moura, for reasons which will later be made clear, the Imperial Government and the Holy See became involved in a dispute more bitter and prolonged than any of the many disputes between the two powers that characterize the history of the church-state relationship in Brazil from the proclamation of the independence of the country in 1822 to the abrogation of the union and the renunciation of patronage by the government in 1890.