List of state leaders in 1231

This is a list of heads of state, government leaders, and other rulers in the year 1231.

Africa

• Egypt (Ayyubid dynasty) – Al-Kamil (1218–1238)
• Kingdom of Ghana (Susu Kingdom) - Sumanguru Kante (~1200–1235)

Asia

• Emirate of Aleppo – Al-Aziz (1216–1236)
• Principality of Antioch – Bohemond IV (1219–1233)
• Armenian Kingdom of Cilicia – Isabella(1219–1252)
• Baghdad – Al-Mustansir, Abbasid caliph of Baghdad (1226–1242)
• Byzantine Empire – in exile in the Empire of Nicaea - John III Ducas Vatatzes (1222–1254)
• China (Jin dynasty) - Emperor Aizong (1224–1234)
• China (Southern Song dynasty) - Emperor Lizong (1224–1264)
• Kingdom of Cyprus – Henry I (1218–1253)
• Korea (Goryeo Kingdom) – Gojong (1213–1259)
• Emirate of Homs – Al-Mujahid (1186–1240)
• India - Iltutmish, Mameluk sultan of India (1211–1236)
• Japan (Kamakura period)
  • Monarch – Emperor Go-Horikawa (1221–1232)
  • Kamakura shogunate - Kujō Yoritsune (1226–1244)
  • Shikken - Hōjō Yasutoki (1224–1242)
• Kingdom of Jerusalem (in Acre) - Conrad of Hohenstaufen (1228–1254)
• The Jezirah – Al-Ashraf (1218–1237)
• Khmer Empire – Indravarman II? (1220–1243)
• Mongol Empire – Ögedei Khan (1229–1241)
• Sultanate of Rûm – Kayqubad I (1220–1237)
• Empire of Trebizond – Andronicus I (1222–1235)
• County of Tripoli – Bohemond IV (1219–1233)

Europe

• County of Angoulême – Hugh I (1218–1249)
• Duchy of Aquitaine, Henry II (1216–1254)
• Kingdom of Aragon – James I (1213–1276)
• Dauphinate of Auvergne – Dalfi d'Alvernha (Robert IV) (1169–1235)
• Margraviate of Baden – Frederick (1216–1231)
• County of Bar – Henry II (1214–1239)
• County of Barcelona – James I (1213–1276)
• Duchy of Bavaria – Louis I (1183–1231)
• County of Boulogne – Matilda II (1216- c. 1260)
• Duchy of Brabant – Henry I (1190–1235)
• Duchy of Brittany – Peter I (1213–1237)
• Bulgarian Empire – Ivan Asen II, Tsar of Bulgaria (1218–1241)
• Duchy of Burgundy – Hugh IV (1218–1272)
• Duchy of Carinthia – Bernhard (1201–1256)
• Crown of Castile – Ferdinand III, the Saint (1217–1252)
• County of Champagne – Theobald IV (1201–1253)
• Kingdom of Denmark – Valdemar II, the Victorious (1202–1241)
• Duchy of Demmin, Wartislaw III (1219–1264)
• Kingdom of England – Henry III (1216–1272)
• County of Flanders – Jeanne (1205–1244)
• Kingdom of France – Louis IX (1226–1270)
• Duchy of Gdańsk, Swietopelk II the Great (1215–1266)
• Kingdom of Gwynedd – Llywelyn the Great, Prince of Gwynedd (1194–1240)
• County of Hainaut – Jeanne (1205–1244)
• County of Holland – Floris IV (1222–1234)
• Holy Roman Empire – Frederick II (1211–1250)
• Kingdom of Hungary – Andrew II (1205–1235)
• Lordship of Ireland – Henry III of England (1216–1272)
• Kievan Rus' – Vladimir III, Grand Prince of Kiev (1223–1235)
• Duchy of Lorraine – Matthias II (1220–1251)
• County of Maine – John Capet (1219–1232)
• Kingdom of Navarre – Sancho VII the Strong (1194–1234)
• Duchy of Normandy, Henry III (claimed, 1216–1259)
• Kingdom of Norway – Haakon IV (1217–1263)
• County of Poitiers – Alfonso (1220–1271)
• Kingdom of Portugal – Sancho II (1223–1247)
• Powys Fadog - Madog ap Gruffydd Maelor, Prince of Powys Fadog (1191–1236)
• County of Provence – Ramon Berenguer IV (1209–1245)
• Duchy of Rugia – Wizlaw I (1218–1249)
• Duchy of Saxony – Albert I (1212–1260)
• Kingdom of Scotland – Alexander II (1214–1249)
• Kingdom of Sicily – Frederick II (1198–1250)
• Duchy of Swabia – Henry II (1216–1235)
• Kingdom of Sweden – Canute II (1229–1234)
• Duchy of Szczecin – Dobry (1220–1278)
• Republic of Venice – Jacopo Tiepolo, Doge of Venice (1229–1249)
• Vladimir-Suzdal – Yuri II, Grand Prince (1218–1238)
• Duchy of Silesia (Wrocław), Henry I the Bearded (1201–1238)
• County of Württemberg – Hartmann (1194–1240)