# Papal Inquisition (1231)

URL: https://christianity-history.com/timeline/1231-papal-inquisition
Location: Rome
Themes: Theology

Pope Gregory IX entrusts the investigation of heresy to the mendicant friars. At this point in the timeline (1231), the Bishop of Rome was Pope Gregory IX (19 March 1227 – 22 August 1241).

## Why it matters
Papal Inquisition mattered because it shaped how Christians understand God, Christ, salvation and the church.

Pope at the time: [Pope Gregory IX](https://christianity-history.com/popes/pope-gregory-ix)

## Sources
- [Wikipedia — Medieval Inquisition](https://en.wikipedia.org/wiki/Medieval_Inquisition)
- [Encyclopaedia Britannica topic lookup — Papal Inquisition](https://www.britannica.com/search?query=Papal+Inquisition)
- [Wikipedia — Medieval Church (period overview)](https://en.wikipedia.org/wiki/History_of_the_Catholic_Church#Middle_Ages)