After nearly doubling its size Ottoman Empire was hungry for more land. Their next step would be pushing forwards to central Europe, thus, it was inevitable they had to face with the Habsburg dynasty of Austria. Any further expansion into Europe wouldn't be possible without defeating the Hungarian king Louis II. Sultan Suleiman I achieved it in the battle of Mohacs in 1526,where the Hungarian king was killed. The Ottomans anexed half of Hungarian territory. After that Hungarian nobility elected two different kings : John Zapolya, who was from Hungary and the Archduke of Austria, Ferdinand I. Ferdinand swiftly started to gain control over the western part of Hungary, thus, starting to share borders with the Ottomans. Ferdinand attacked John Zapolya, who was defeated and ran to Poland. Suleiman I couldn't tolerate that. He mastered a giant army and marched towards the Habsburg territory. The sultan regained Hungarian territory and gave it back to John Zapolya. Then he marched to...