Pope Pius XI was head of the Catholic Church from 6 February 1922 until his death in February 1939. He was also the first sovereign of Vatican City upon its creation on 11 February 1929.
- Occupation
- Latin Catholic priest, librarian, mountaineer, Catholic bishop
- Position held
- Pope, Roman Catholic Archbishop of Milan, cardinal, titular archbishop of Naupactus
- Citizenship
- Kingdom of Italy, Vatican City
- Born
- May 31, 1857, March 31, 1857
- Died
- February 10, 1939
