1228

Events

* April 25 - Conrad IV of Germany becomes titular King of Jerusalem, with Frederick II, Holy Roman Emperor as regent.
* June - The Sixth Crusade is launched from Brindisi by Emperor Frederick II, after delays due to sickness and an excommunication from Pope Gregory IX.
* July 16 - Saint Francis of Assisi is canonized by Pope Gregory IX.
*"date not listed:"
**
** Baldwin II becomes emperor of the Latin Empire in Constantinople, with John of Brienne as regent.
** Amadeus IV becomes count of Savoy.
** Sukaphaa, the first Ahom king, establishes his rule in Assam. The Ahom kings reign for close to 600 years.
** The Transylvanian town of Reghin is first mentioned in a charter of Andrew II of Hungary.
** Abu Zakariya founds the Hafsid dynasty in Ifriqiyah (near Tunis).
** King James I of Aragon decides to launch a major offensive against the Muslims in Majorca.

Births

* April 25 - Conrad IV of Germany (d. 1254)
* William II, Count of Holland
* Shihab al-Din al-Qarafi, Islamic legal scholar

Deaths

* July 9 - Stephen Langton, Archbishop of Canterbury
* Aedh mac Cathal Crobdearg Ua Conchobair, King of Connacht
* Robert of Courtenay, emperor of the Latin Empire
* Queen Yolande of Jerusalem (b. 1212)
* September 24 - Stefan II