Centuries: 12th century - 13th century - 14th century

Decades: 1170s 1180s 1190s 1200s 1210s - 1220s - 1230s 1240s 1250s 1260s 1270s

Years: 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227

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Events

• Foundation of the University of Padua
• Completion of the Cistercian convent in Alcobaca, Portugal
• Eric XI becomes King of Sweden
• Premysl Ottokar I reunites Bohemia and Moravia
• John III Ducas Vatatzes becomes Byzantine emperor (in the Empire of Nicaea)
• Alexander of Hales enters the Franciscan order
• April 17 - Stephen Langton, Archbishop of Canterbury, opens a council at Osney

Births

• February 16 - Nichiren Daishonin, founder of Nichiren Shoshu Buddhism

Deaths

• Theodore I Lascaris, founder of the Byzantine Empire of Nicaea

Monarchs/Presidents

• Aragon - James I King of Aragon and count of Barcelona (reigned from 1213 to 1276)
• Castile - Ferdinand III, the Saint King of Castile and Leon (reigned from 1217 to 1252)
• France - Philippe II, Auguste King of France (reigned from 1180 to 1223)
• Holy See - Honorius III pope (from 1216 to 1227)
• Mongol Empire - Genghis Khan, Mongol Khan (from 1206 to 1227)
• Navarre - Sancho VII the Strong King of Navarre (reigned from 1194 to 1234)
• Portugal - Afonso II, the Fat, King of Portugal (reigned from 1212 to 1233)
• Venice - Pietro Ziani Doge of Venice (ruled from 1205 to 1229)

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