Великий инквизитор
Following the death of Isabella of Portugal on 1 May 1539, Charles V appointed Juan Pardo de Tavera regent of Castile in his absence, a post he would hold until 1541. At the same time, he was appointed Grand Inquisitor of Spain on 10 June 1539 and he began his duties as Grand Inquisitor on 7 December 1539.