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Pope Gregory IX

The archive is edited continuously; cite the access date. For scholarly work, please also consult the primary sources listed in the entry's references.

The Keeper's editorial team. (2026). Pope Gregory IX. Humans of History. Retrieved September 14, 2026, from https://humansofhistory.com/person/pope-gregory-ix

"Pope Gregory IX." Humans of History, 7 Sep. 2026, https://humansofhistory.com/person/pope-gregory-ix. Accessed 14 Sep. 2026.

Humans of History. "Pope Gregory IX." Last modified September 7, 2026. https://humansofhistory.com/person/pope-gregory-ix.

@misc{hoh-pope-gregory-ix,
  title        = {Pope Gregory IX},
  author       = {{The Keeper's editorial team}},
  year         = {2026},
  howpublished = {\url{https://humansofhistory.com/person/pope-gregory-ix}},
  note         = {Humans of History archive, accessed 2026-09-14}
}