 ==asia== *china (southern song dynasty) - emperor lizong (1224&ndash;1264) *korea (goryeo kingdom) â gojong (1213&ndash;1259) *japan (kamakura period) ** monarch â emperor go-fukakusa (1246&ndash;1260) ** kamakura shogunate - **# kujÅ yoritsugu (1244&ndash;1252) **# prince munetaka (1252&ndash;1266) ** shikken - hÅjÅ tokiyori (1246&ndash;1256) *khmer empire â jayavarman viii (1243&ndash;1295) *mongol empire â mÃ¶ngke khan (1251&ndash;1260) *pagan kingdom â uzana (1250&ndash;1255) *sukhothai kingdom â sri indraditya (1249&ndash;1257) ==europe== *principality of achaea â william ii of villehardouin (1246&ndash;1278) *county of angoulÃªme â hugh ii (1249&ndash;1260) *kingdom of aragon â james i (1213&ndash;1276) *kingdom of bohemia - wenceslaus i (1230&ndash;1253) *duchy of brittany â john i (1237&ndash;1286) *bulgarian empire â michael ii asen, tsar of bulgaria (1246&ndash;1256) *crown of castile â *# ferdinand iii of castile (1217&ndash;1252) *# alfonso x of castile (1252&ndash;1284) *county of champagne â theobald iv (1201&ndash;1253) (also king of navarre) *kingdom of denmark â *# abel (1250&ndash;1252) *# christopher i (1252&ndash;1259) *kingdom of england â henry iii (1216&ndash;1272) *county of flanders â margaret ii (1244&ndash;1278) *kingdom of france â louis ix (1226&ndash;1270) *kingdom of gwynedd â llywelyn ap gruffudd (1246&ndash;1282) *holy roman empire â conrad iv, king of the romans (1237&ndash;1254) **county of holland â william ii, rival king (1234&ndash;1256) *kingdom of hungary â bÃ©la iv (1235&ndash;1270) *kingdom of lithuania â mindaugas (1236&ndash;1253) *kingdom of navarre â theobald i (1235&ndash;1253) (also count of champagne) *kingdom of norway â haakon iv (1217&ndash;1263) *duchy of poland â bolesÅaw v the chaste, high duke of poland (1243&ndash;1279) *kingdom of portugal and the algarves â [[afonso iii of p
1252 13th-century_rulers Lists_of_state_leaders_by_year