Jus exclusivae was the right claimed by several Catholic monarchs of Europe to veto a candidate for the papacy. Although never formally recognized by the Catholic Church, the monarchs of France, Spain and Austria claimed this right at various times, making known to a papal conclave, through a crown-cardinal, that the monarch deemed a particular candidate for the papacy objectionable.
Franz Joseph I of Austria was the last monarch to attempt to exercise the jus exclusivae.
A papal conclave is a gathering of the College of Cardinals convened to elect a bishop of Rome, also known as the pope. Catholics consider the pope to be the apostolic successor of Saint Peter and the earthly head of the Catholic Church.
The 1492 papal conclave was the first to be held in the Sistine Chapel, the site of all conclaves since 1878.
Since the conclave of 2005, the cardinals electors reside in the Domus Sanctae Marthae for the length of the conclave.
The camerlengo proclaiming a papal death
Cardinals, bishops and priests attending the funeral of Pope John Paul II