Historical eventJanuary 231264

Louis IX of France

King Louis IX of France issued the Mise of Amiens, a settlement between King Henry III of England and barons led by Simon de Montfort heavily favouring the former, which later led to the Second Barons' War.

Everything on January 23Original source

In context

When
Wednesday, January 23 1264762 years ago
Category
Historical eventA dated happening — a battle, treaty, launch, discovery, disaster or decision — recorded on this calendar day.
Era
13th century · 1260s
Calendar
Julian — as recorded at the time
Recorded from
Wikipedia “On this day” feed

Dates before 15 October 1582 are in the Julian calendar, so the weekday shown follows the Julian reckoning of the time.

At a glance

Dates: From 1264.

What happened

King Louis IX of France issued the Mise of Amiens, a settlement between King Henry III of England and barons led by Simon de Montfort heavily favouring the former, which later led to the Second Barons' War.

January 23 through the years

Other entries on the same calendar day, in order.

  1. 1264Louis IX of France
  2. 1998Netscape
  3. 20012001 Tiananmen Square self-immolation incident
  4. 2002Daniel Pearl
  5. 2003NASA
  6. 2003Pioneer 10
  7. 20182018 Gulf of Alaska earthquake
  8. 2018China–United States trade war
  9. 2018Benghazi
  10. 2022Paul-Henri Sandaogo Damiba
  11. 2024Northwestern Air Flight 738

Also in 1264

  • August 14War of Saint SabasWar of Saint Sabas: A Genoese fleet captured or sank most of the ships of a Venetian trade convoy off the Albanian coast.
  • August 8ReconquistaReconquista: In the early stages of the Mudéjar revolt, Muslim rebels captured the Alcázar of Jerez de la Frontera in present-day Spain,…
  • May 14Second Barons' WarSecond Barons' War: King Henry III was defeated at the Battle of Lewes and forced to sign the Mise of Lewes, making Simon de Montfort the…

Everything we record for 1264 →

Sources

Cite this page

“Louis IX of France”, What's On This Date, https://whatsonthisdate.com/app/event/louis-ix-of-france-1264-january-23, accessed October 24, 2026.

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Questions about this entry

When did Louis IX of France happen?

January 23 1264 — 762 years ago, on a Wednesday.

Is this a Julian or a Gregorian date?

It is the date as recorded at the time, on the Julian calendar. The Gregorian equivalent falls about ten days later; sources from different countries may give either.

Where does this text come from?

Wikipedia “On this day” feed. Summaries are short adaptations that link back to the source, not reprints.

How do I cite this page?

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