Middle Ages · 154th pope in the Annuario Pontificio list
Stephen IX
- Pontificate
- 15/08/1057 – 29/03/1058
- Born – died
- 1020 – 1058
- Predecessor
- Victor II
- Successor
- Nicholas II
A short profile for this pope is in preparation.
List: Wikidata (CC0), ordinals per the Annuario Pontificio, retrieved 2026-10-01. Antipopes are not included. For the current pope, see vatican.va.