# First Lateran Council (1123)

URL: https://christianity-history.com/timeline/1123-first-lateran-council
Location: Rome
Themes: Council

The first ecumenical council held in the West confirms the Concordat of Worms. At this point in the timeline (1123), the Bishop of Rome was Pope Callixtus II (2 February 1119 – 13 December 1124).

## Why it matters
First Lateran Council mattered because its decisions defined doctrine, discipline or church order for generations of Christians.

Pope at the time: [Pope Callixtus II](https://christianity-history.com/popes/pope-callixtus-ii)

## Sources
- [Wikipedia — First Council of the Lateran](https://en.wikipedia.org/wiki/First_Council_of_the_Lateran)
- [Encyclopaedia Britannica topic lookup — First Lateran Council](https://www.britannica.com/search?query=First+Lateran+Council)
- [Wikipedia — Medieval Church (period overview)](https://en.wikipedia.org/wiki/History_of_the_Catholic_Church#Middle_Ages)