Charles of Germany had become a danger for both Europe and the Ottoman Empire. Francois of France had sent an ambassador to Suleyman and asked for a promise for a campaign to Austria. Suleyman gave his word and the Ottoman Army passed the river Danube and entered Hungary. On 20^th August 1526 a disastrous battle had been fought, which Hungary still bears the name of the destruction of Mohacs. The Ottoman army defeated Hungarians in few hours and captured Buda. Hungary became an Ottoman depended kingdom. John Zapolya had been appointed as the king.