Pope Leo XI, born Alessandro di Ottaviano de' Medici, was head of the Catholic Church and ruler of the Papal States from 1 April 1605 to his death, on 27 April 1605. His pontificate is one of the briefest in history, lasting under a month. He was from the prominent House of Medici originating from Florence.
- Occupation
- diplomat, Catholic priest, Catholic bishop
- Position held
- Pope, Roman Catholic Archbishop of Florence, Cardinal-Bishop of Palestrina, Cardinal-Bishop of Albano
- Citizenship
- Papal States
- Born
- June 2, 1535
- Died
- April 27, 1605