The Fall of the Medieval Hungarian State and the Turkish Conquest, 1490–1526

Matthias Corvinus died prematurely and without a legal successor in 1490. The powerless rulers of the Jagiellonian dynasty that followed bought the benevolence of ever more unbridled lords by granting them concessions. Hungary’s international role was wasted, its political stability shaken, and social progress deadlocked. Matthias’s conquests — Moravia, Silesia and part of Austria — were lost.

The constant infighting and unlawful acts committed during the feudal anarchy imposed intolerable burdens on the peasantry in Hungary. Their bitterness resulted in the peasant war of 1514, part of the broader European peasant unrest that ran from the Hussite uprisings to the 1525 German Peasants’ War. The uprising led by György Dózsa was brutally crushed, and the lords took revenge. Hungary was in a state of anarchy and discord when the Ottoman Empire, by then near the peak of its power, prepared a new campaign against Europe and reached Hungary’s southern borders.

The Battle of Mohács, August 29, 1526

The dreaded event occurred at the Battle of Mohács. The 70,000–80,000-strong Ottoman army, led by Suleiman I (“the Magnificent,” r. 1520–1566), reached the battlefield on August 29. The Hungarian army, outnumbered roughly three to one, made a vain attempt to halt the advance: in just 90 minutes the cream of the infantry and the Hungarian nobility was lost. King Lajos (Louis) II (1515–1526) drowned in a swollen stream while fleeing the field. His body was found only weeks later. The Sultan marched into Buda, the capital of Hungary, two weeks after the battle.

Mohács Battle Scenes, by Bertalan Székely (1835–1911); from the collection of the Hungarian National Gallery, Budapest.

The Partition of Hungary and 150 Years of Turkish Rule

Mohács did not end Hungarian statehood outright, but it began its unraveling. With the king dead and no clear succession, the country split between two rival kings — Ferdinand of Habsburg and János Szapolyai — while the Ottomans returned repeatedly to press their advantage. In 1541, Suleiman occupied Buda itself under the pretext of protecting Szapolyai’s infant heir, and by the mid-1540s medieval Hungary had been carved into three distinct parts that would persist for roughly a century and a half:

• Ottoman Hungary — the central third of the country, including Buda, absorbed directly into the Ottoman Empire as a frontier province, administered by pashas and garrisoned by Turkish troops.
• Royal Hungary — a narrow strip along the western and northern rim (including present-day Slovakia), retained by the Habsburgs, who now also held the Hungarian crown; its capital and coronation seat moved to Pozsony (Pressburg, now Bratislava).
• The Principality of Transylvania (Erdély) — the eastern territories, which became a semi-independent state under Ottoman suzerainty, paying tribute to the Sultan but retaining its own princes, diet, and — critically — religious tolerance unmatched elsewhere in contemporary Europe. Transylvania became a refuge for Hungarian statehood and culture during the occupation, and briefly, under princes like Gábor Bethlen, a significant regional power in its own right.

The frontier between Ottoman and Habsburg territory hardened into a line of fortresses and near-constant low-level warfare, punctuated by major sieges — Kőszeg (1532), Eger (1552), Szigetvár (1566) — that became touchstones of national memory. The Ottoman presence reshaped the demographic and cultural map of the Great Hungarian Plain, with widespread depopulation, resettlement, and the introduction of Ottoman administration, mosques, and baths in occupied towns.

The tide turned only at the end of the 17th century. Vienna’s failed siege by the Ottomans in 1683 triggered a Habsburg-led counteroffensive; Buda was retaken in 1686 after 145 years of Turkish rule, and the Treaty of Karlowitz (1699) formally ended Ottoman control over most of Hungary. Transylvania passed under Habsburg rule as a separate grand principality, setting the stage for the next chapter of Hungarian history — including the Rákóczi War of Independence (1703–1711) and, later, the Reform Era and 1848 Revolution.