The March–April 1605 papal conclave was convened on the death of
Pope Clement VIII and ended with the election of Cardinal Alessandro Ottaviano de' Medici as
Pope Leo XI. It was the first of
two papal conclaves in 1605; Leo died on 27 April 1605, twenty-six days after he was elected. The conclave was dominated by conflict over whether
Cesare Baronius
Cesare Baronio (as an author also known as Caesar Baronius; 30 August 1538 – 30 June 1607) was an Italian Cardinal (Catholicism), cardinal and historian of the Catholic Church. His best-known works are his ''Annales Ecclesiastici'' ("Eccl ...
should be elected pope, and
Philip III of Spain