Ultimately Vieira returned to Portugal with a papal bull exempting him from the jurisdiction of the grand inquisitor, and in January 1681 he embarked for Brazil.
The oldest trustworthy sources know nothing of his having exercised the office of Inquisitor during the Albigensian war" (Griitzmacher).
He was succeeded in his see by the inquisitor-general, Gaspar Quiroga.
During the eighteen years that he was inquisitor-general it is said that he burnt 10,2 20 persons, condemned 6860 others to be burnt in effigy, and reconciled 97,321, thus making an average of some 6000 convictions a year.
At Saragossa Peter Arbue, a canon and an ardent inquisitor, was slain in 1485 whilst praying in a church; and the threats against the hated Torquemada made him go in fear of his life, and he never went abroad without an escort of forty familiars of the Holy Office on horseback and two hundred more on foot.