On August 29, 1526, the battle of Mohács saw the forces of the Ottoman Empire, led by Suleiman the Magnificent, and those of the Kingdom of Hungary, commanded by King Ludwig II.
The victory of the Ottomans will subsequently lead to the partition of Hungary between the Ottoman Empire, the Habsburg rulers of Austria and the principality of Transylvania.
Procedure
The Ottoman Sultan Suleiman the Magnificent left Constantinople in April 1526 with 80,000 men and seized the fortress of Peterwardein (Petrovaradin) in July. Ludwig II of Hungary reunites with difficulty 26,000 men from the troops of barons and counties which are placed under the command of the Archbishop of Kalocsa, Pál Tomori (August). The two armies meet at Mohács (August 29):the courageous attack of the Hungarians is broken by the Ottoman artillery. Swept away by the Janissaries, they fled to the marshes and Louis II, aged twenty, drowned with his horse. The leaders of the army and half of the soldiers are put to death.
Buda is taken (September 10) and the Ottoman border is pushed back to the gates of Vienna. Fifteen days later, Soliman resumed his journey to Constantinople.
Consequences
Soliman supports Zsapolyai, a voivode of Transylvania, against Ferdinand de Habsbourg to succeed Ludwig II. Jean Zsapolyai was elected king of Hungary without difficulty at the diet of Székesfehérvár (November 10, 1526) but the widow of Louis II, Marie de Habsbourg, played into her brother's hands and convened another diet in Pressburg, presided over by the palatine of the queen, who proclaims Ferdinand king of Hungary (December 17). The Jagiellons lose the crowns of Bohemia and Hungary to the Habsburgs, in accordance with the Treaty of Worms. Hungary is divided:Ferdinand of Habsburg reigns in the west and Jean Zsapolyai in the east, in Transylvania. The two kings clash.