Cardinals created by Gregory IX
Pope Gregory IX created sixteen cardinals in five consistories that he held throughout his pontificate. This included three future successors in the first allocation in 1227.
18 September 1227
- Jean Halgrin O.S.B. Clun.
- Goffredo Castiglioni
- Rinaldo Conti di Segni
- Sinibaldo Fieschi
- Barthélemy
- Otto of Tonengo
December 1228
September 1231
- Giacomo da Pecorara O.Cist.
- Simon de Sully
- Raymond de Pons