Siege of Vienna

September 27, 1529

Suleiman's army, bogged down by autumn rains, reached the walls of Vienna and began mining its bastions. The defenders, led by Count Nicholas of Salm, held for two weeks while snow fell on the Ottoman camp. Suleiman withdrew in October. Islam had reached its high-water mark in Central Europe. The failure marked the effective limit of Ottoman expansion into Central Europe, establishing the Danube frontier for two centuries.