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Index/People/Gregory IX

Gregory IX

Pope of the Catholic Church from 1227 to 1241

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Jan 19, 2026
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did pope gregory the IX contribute to the bubonic plague?

The short answer: there is no reliable evidence that Pope Gregory IX intentionally caused—or can be held meaningfully responsible for—the bubonic plague; the story that his 1233 decretal "Vox in Rama"...