1238
| Years: 1235 1236 1237 - 1238 - 1239 1240 1241 | |
| Decades: 1200s 1210s 1220s - 1230s - 1240s 1250s 1260s | |
| Centuries: 12th century - 13th century - 14th century | |
Events
- In the Iberian peninsula, James I of Aragon captures the city of Valencia from the Moors; the Moors retreat to Granada.
- Mongols seize Moscow, at that time a small town.
- Peterborough Cathedral is consecrated.
- The Khmers are expelled from Luang Phrabang in Laos.
- The Sukhothai kingdom is founded in Thailand.
- The seat of the patriarchate of Aquileia is transferred to Udine.
- Simon de Montfort marries Eleanor, sister of Henry III of England.
- Henry I of Poland, in battle with the Mongols.
- 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)