|Ab urbe condita||1979|
|Balinese saka calendar||1147–1148|
|English Regnal year||10 Hen. 3 – 11 Hen. 3|
|Chinese calendar||乙酉年 (Wood Rooster)|
3922 or 3862
— to —
丙戌年 (Fire Dog)
3923 or 3863
|- Vikram Samvat||1282–1283|
|- Shaka Samvat||1147–1148|
|- Kali Yuga||4326–4327|
|Japanese calendar||Karoku 2|
|Minguo calendar||686 before ROC|
|Thai solar calendar||1768–1769|
1352 or 971 or 199
— to —
1353 or 972 or 200
|Wikimedia Commons has media related to 1226.|
- King Louis VIII of France launches a large southward offensive against the Albigensians and the Count of Toulouse. Ramon Berenguer IV, Count of Provence, uses the opportunity to reassert his authority upon the autonomous municipalities of his estates (October). Most cities have to accept the authority of the Count, but Marseille and Nice rebel.
- November 8 – Louis IX of France starts to rule, on the death of Louis VIII.
- King Sancho II of Portugal launches a large offensive against the Muslims, and takes the city of Elvas.
- Frederick II, Holy Roman Emperor, calls the Imperial Diet of Cremona.
- Nuneaton is granted a chartered market status, by King Henry III of England.
- Rǫgnvaldr Guðrøðarson, King of the Isles, is overthrown as ruler of the Kingdom of the Isles, and replaced with his half-brother, Olaf the Black.
- March 9 – Khwarezmian sultan Jalal ad-Din captures Tbilisi, the capital of the Kingdom of Georgia, killing many of its Christian inhabitants.
- October 30 – Trần Thủ Độ, head of the Trần Dynasty of Vietnam, forces Lý Huệ Tông, last emperor of the Lý Dynasty, to commit suicide.
Arts and cultureEdit
- In Norway, Brother Robert writes Saga Af Tristram ok Ísodd, one of the rare fully surviving versions of the legend of Tristan and Iseult.
- March 7 – William Longespée, 3rd Earl of Salisbury, English military leader
- September 16 – Pandulf Verraccio, Roman ecclesiastical politician
- October 3 – Francis of Assisi, Italian saint (b. 1181 or 1182)
- November 8 – King Louis VIII of France (b. 1187)
- November 14 – Frederick of Isenberg, German politician (executed) (b. 1193)
- date unknown – Robert de Ros, English baron (b. 1177)
- Saint Beatrice d'Este, Italian saint
- Dell'Umbria, Alèssi (2006). Histoire universelle de Marseille. De l'an mil à l'an deux mille. Marseille: Agone. p. 19. ISBN 2-7489-0061-8.
- Picard, Christophe (2000). Le Portugal musulman (VIIIe-XIIIe siècle. L'Occident d'al-Andalus sous domination islamique. Paris: Maisonneuve & Larose. p. 110. ISBN 2-7068-1398-9.
- Tristan et Iseult. Paris: Gallimard. 1995. ISBN 2-07-011335-3.