Decades: 1170s 1180s 1190s 1200s 1210s - 1220s - 1230s 1240s 1250s 1260s 1270s
Years: 1223 1224 1225 1226 1227 - 1228 - 1229 1230 1231 1232 1233
The Sixth Crusade is launched by Frederick II, Holy Roman Emperor, after delays due to sickness and an excommunication from Pope Gregory IX.
Conrad IV of Germany becomes titular King of Jerusalem, with Frederick II as regent.
Baldwin II becomes emperor of the Latin Empire in Constantinople, with John of Brienne as regent.
Amadeus IV becomes count of Savoy.
Conrad IV of Germany
Count William II of Holland
Robert of Courtenay, emperor of the Latin Empire
Yolande of Jerusalem, titular Queen of Jerusalem
July 9 - Stephen Langton, Archbishop of Canterbury
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)
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)