20th Century · 259th pope in the Annuario Pontificio list
Pius XI
- Pontificate
- 06/02/1922 – 10/02/1939
- Birth name
- Achille Ambrogio Damiano Ratti
- Nationality
- Italy
- Born – died
- 1857 – 1939
- Predecessor
- Benedict XV
- Successor
- Pius XII
Important events
- Lateran Treaty (1929) created Vatican City State
- Instituted the feast of Christ the King (1925)
Councils and documents
- Quadragesimo anno (1931)
- Mit brennender Sorge (1937), against Nazism
- Divini Redemptoris (1937), against atheistic communism
List: Wikidata (CC0), ordinals per the Annuario Pontificio, retrieved 2026-10-01. Antipopes are not included. For the current pope, see vatican.va.