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|1222 by topic|
|Political entities - State leaders - Religious leaders|
|Birth and death categories|
|Births – Deaths|
|Establishments and disestablishments categories|
|Establishments – Disestablishments|
|Art and literature|
|1222 in poetry|
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- April 17 – Stephen Langton, Archbishop of Canterbury in England, opens a council at Osney Abbey, Oxford.
- May 11 – Cyprus is rocked by an earthquake.
- August – After the death of John I of Sweden on March 10, 6-year-old Erik Eriksson is elected new King of Sweden (sometime between this time and July 1223).
- Livonian Crusade: The Danish fail in their attempt to conquer Saaremaa Island from the Estonians.
- The Cistercian convent is completed in Alcobaça, Portugal.
- Ottokar I of Bohemia reunites Bohemia and Moravia.
- Traditional date: The University of Padua is founded in Italy, by Frederick II, Holy Roman Emperor.
- The Golden Bull of 1222 is issued in Hungary, limiting the power of the monarchy over the nobility.
- Approximate date – The Royal Standard of Scotland is adopted.
- February 16 – Nichiren, founder of Nichiren Buddhism (d. 1282)
- August 4 – Richard de Clare, 6th Earl of Gloucester, English soldier (d. 1262)
- Andrei II of Russia, Grand Prince of Vladimir (d. 1264)
- Queen Jeongsun (Wonjong) of Korea (d. 1237)
- February 1 – Alexios Megas Komnenos, first Emperor of Trebizond
- March 10 – Johan Sverkersson, king of Sweden since 1216 (b. 1201)
- June 23 – Constance of Aragon, Holy Roman Empress, queen consort of Hungary (b. 1179)
- August 2 – Raymond VI, Count of Toulouse (b. 1156)
- August 12 – Vladislaus III, Duke of Bohemia
- Theodore I Lascaris, founder of the Byzantine Empire of Nicaea