Bohemia was elevated into an independent kingdom within the Holy Roman Empire under Ottokar I or Otakar I (1198-1230) and the royal title became hereditary. Ottokar I was succeeded by Wenceslaus I Premyslid (1230-1253) who successfully repulsed the Mongolian attack in 1241 and suppressed the rebellion led by his son Ottokar II who was imprisoned. He arranged marriage between his first born son and heir Vladislaus with the Duke’s niece Gertrud to gain the Duchy of Austria but Vladislaus died shortly afterwards, while his widow swiftly remarried. Wenceslaus I invaded Austria, released his son Ottokar II, named him margrave of Moravia and installed him as governor of Austria.
Ottokar II married the late Duke’s sister Margaret to legitimize his position in Austria and succeeded his father Wenceslaus I as Ottokar II of Bohemia (1253-1278). He seized Styria from Hungary in 1260 and inherited Carinthia and Carniola in 1269. Bohemia reached its greatest territorial extent stretching from Silesia to the Adriatic and became the most powerful state of the Holy Roman Empire. Ottokar II joined the contest for the Imperial throne and refused to recognize his victorious rival Rudolph of Habsburg. However, he was deprived of Styria, Austria and Carinthia at the convention of the Reichstag at Frankfurt in 1274 and forced to give up all claims to Austria and the neighboring duchies two years later. Ottokar II retained only Bohemia and Moravia. He tried to recapture the lost lands but he was defeated and killed by Rudolph of Habsburg in the Battle of Durnkrut and Jedenspeigen in 1278.
Ottokar II was succeeded by his son Wenceslaus II (1278-1305). He gained the Duchy of Krakow from Premislas II but the latter retained other duchies in Poland and the royal insignia from Krakow, and was crowned King of Poland in 1295. However, Wenceslaus became the overlord of Poland after Premislas’ death in 1296 and was crowned King of Poland in 1300. Wenceslaus also assumed the Hungarian throne on behalf of his son after death of Andrew III of Hungary, the last of the Arpad dynasty in male line in 1301 but he failed to gain full support of the Hungarians. He was succeeded by his son Wenceslaus III (1305-1306) who renounced his claim to the Hungarian throne and met difficulties in Poland. He was murdered under mysterious circumstances in Olomouc, Moravia in 1306.
The Premyslid dynasty became extinct after the death of Wenceslaus III and the Bohemian throne was assumed by Henry VI of Carinthia (1306-1310). In 1310, he was deposed by John of Luxembourg (1310-1346) who assumed the Bohemian throne through marriage with Elisabeth, heiress of Wenceslaus III of Bohemia. John of Luxembourg extended Bohemian territory to upper Lusatia and Silesia and ruled part of Lombardy and Tyrol for a short period. He got involved in the Hundred Years’ War siding with France against England but he was killed in the Battle of Crecy in 1346.
John of Luxembourg was succeeded by Charles IV (1346-1378) who was elected King of Germany in 1346 and crowned Holy Roman Emperor in 1355. Bohemia reached its political and cultural height during his reign. Charles IV greatly increased the power of his dynasty through skillful diplomacy, purchases, marriages and inheritance, and made Prague the political and cultural center of the Holy Roman Empire. He founded the first university in Prague and in Central Europe in 1348, expanded and rebuilt the Prague Castle, built much of the cathedral of Saint Vitus and ordered the construction of the famous Charles Bridge.
Charles IV was succeeded by his son Wenceslaus IV (1378-1419) who was crowned Holy Roman Emperor in 1376. However, he was deposed as Holy Roman Emperor and replaced by Rupert of Wittelsbach in 1400. As King of Bohemia, Wenceslaus IV supported the religious reformer Jan Hus and his followers against the Roman Catholic Church. Hus’ execution in 1415 provoked serious unrest which resulted in the outbreak of the Hussite Wars (1420-1434) after Wenceslaus’ death in 1419.
The Bohemian crown was claimed by Wenceslaus’ brother Sigismund, King of Hungary from 1387 and King of Germany from 1411. However, the Bohemians refused to recognize Sigismund as King of Bohemia because of his role at the Council of Constance which burned Jan Hus at the stake for heresy. Sigismund declared a war against the heretics but all his military campaigns against the Hussites led by Jan Ziska and Prokop the Great failed. He was able to assert his rights to the Bohemian throne only after the outbreak of a war between the two fractions of Hussites, the Utraquists and the Taborites in 1434. The Hussite Wars ended with the peace agreement signed at Jihlava by King Sigismund, the Hussite delegates and the representatives of the Roman Catholic Church in 1436. Sigismund was finally crowned King of Bohemia but his power was little more than nominal.
Albert II of Habsburg (1437-1439) who was married with Sigismund’s daughter and heiress Elizabeth succeeded Sigismund as King of Hungary, Germany and Bohemia. He was killed in a campaign against the Ottomans at Neszmely in 1439 and was succeeded by his posthumously born son Ladislaus the Posthumous (1453-1457). The latter was crowned king of Bohemia at age of thirteen in 1453 but he died suddenly in 1457. He was succeeded by his regent George of Podebrady (1458-1471) who was the last domestic ruler of Bohemia.
George of Podebrady was succeeded by Vladislaus II who was unable to defeat his rival Matthias Corvinus, King of Hungary who claimed the Bohemian throne. The conflict between the rival kings was settled with the Peace of Olomouc in 1478 allowing both Vladislaus and Matthias Corvinus to use the title King of Bohemia. Vladislaus reigned Bohemia, while Matthias gained Moravia, Silesia and the two Lusatias. Vladislaus II succeeded Matthias’ as King of Hungary on his death in 1490 and incorporated the Bohemian lands into the Kingdom of Hungary.