Paul V

Pope Paul V (Latin: Paulus PP. V; Italian: Paolo V) (17 September 1550 – 28 January 1621), born Camillo Borghese, was head of the Catholic Church and ruler of the Papal States from 16 May 1605 to his death, in January 1621. In 1611, he honored Galileo Galilei as a member of the papal Accademia dei Lincei and supported his discoveries. In 1616, Pope Paul V instructed Cardinal Robert Bellarmine to inform Galileo that the Copernican theory could not be taught as fact, but Bellarmine's certificate allowed Galileo to continue his studies in search for evidence and use the geocentric model as a theoretical device. That same year Paul V assured Galileo that he was safe from persecution so long as he, the Pope, should live. Bellarmine's certificate was used by Galileo for his defense at the trial of 1633.

Trained in jurisprudence, Borghese was made Cardinal-Priest of Sant'Eusebio and the Cardinal Vicar of Rome by Pope Clement VIII. He was elected as Pope in 1605, following the death of Pope Leo XI. Pope Paul V was known for being stern and unyielding, defending the privileges of the Church. He met with Galileo Galilei in 1616 and was involved in the controversy over heliocentrism. He canonized and beatified several individuals during his papacy and created 60 cardinals in ten consistories.