1220s

The 1220s was a decade of the Julian Calendar which began on January 1, 1220, and ended on December 31, 1229.

Significant people

 * Abu Muhammad al-Wahid, Almohad Caliph of Morocco
 * Abu Zakariya, first Sultan of the Hafsid Dynasty of Ifriqiya
 * Adolf IV, Count of Schauenburg and Holstein
 * Alfonso IX, King of León and Galicia
 * Andrew II, King of Hungary and Croatia
 * Baldwin II, Latin Emperor of Constantinople
 * Konrad I, Duke of Masovia and Kujawy and High Duke of Poland
 * Conrad IV, King of Jerusalem
 * Chiconquiauhtzin, Tlatoani of Azcapotzalco
 * Chūkyō, Emperor of Japan
 * Dōgen, founder of the Sōtō school of Zen Buddhism in Japan
 * Erik XI, King of Sweden
 * Ferdinand III, King of Castile and Toledo
 * Saint Francis of Assisi, Roman Catholic saint
 * Frederick II, Holy Roman Emperor
 * Genghis Khan, first Great Khan of the Mongol Empire
 * Emperor Go-Horikawa of Japan
 * Emperor Go-Toba of Japan
 * Pope Gregory IX
 * Henry III, King of England, Lord of Ireland, and Duke of Aquitaine
 * Pope Honorius III
 * Iltutmish, first Sultan of the Delhi Sultanate
 * Jalal ad-Din Mingburnu, final Sultan of the Khwarezmian Empire
 * James I, King of Aragon and Count of Barcelona
 * Jochi, Mongol army commander and eldest son of Genghis Khan
 * John of Brienne, King of Jerusalem and Latin Emperor of Constantinople
 * John I, King of Sweden
 * John III Doukas Vatatzes, Emperor of Nicaea
 * Emperor Juntoku of Japan
 * Al-Kamil, Ayyubid Sultan of Egypt
 * Knut II, King of Sweden
 * Leszek I the White, Duke of Sandomierz and High Duke of Poland
 * Louis VIII, King of France
 * Louis IX, King of France
 * Lý Chiêu Hoàng, Empress of Vietnam
 * Lý Huệ Tông, Emperor of Vietnam
 * Manqu Qhapaq, first Emperor of the Inca Empire
 * Ögedei Khan, second Great Khan of the Mongol Empire, third son of Genghis Khan
 * Olaf the Black, King of the Isles
 * Ottokar I, King of Bohemia
 * Ramon Berenguer IV, Count of Provence and Count of Forcalquier
 * Rǫgnvaldr Guðrøðarson, King of the Isles
 * Rujing, Caodong Buddhist monk and Zen master
 * Sancho II, King of Portugal
 * Stephen Langton, Archbishop of Canterbury
 * Subutai, Mongol commander and primary military strategist of the Mongol Empire
 * Sukaphaa, first King of Ahom
 * Theodore Komnenos Doukas, Despot of Epirus and Emperor of Thessalonika
 * Tolui, Mongol commander and regent of the Mongol Empire, fourth son of Genghis Khan
 * Trần Thái Tông, Emperor of Vietnam
 * Trần Thủ Độ, military commander and regent of the Empire of Vietnam
 * Valdemar II, King of Denmark
 * Yuri II, Grand Prince of Vladimir
 * Yaroslav, Prince of Novgorod
 * Yusuf II al-Mustansir, Almohad Caliph of Morocco