OK. Now, at the same time, the Church's power was already shaken by Protestantism (the Schmalkaldic League came just a year after the first attack on Vienna).

BTW, there were several further Ottoman attacks aimed at Vienna, but those were grinding down at some castle along the way. (The second got the furthest, in 1532, when such a delay let Emperor Karl V collect his troops, and the Ottoman armies turned south and laid waste to Steyerland instead.)

_{*Lunatic*, n.
One whose delusions are out of fashion.}