The siege of Vienna has frightened the…
1532 CE
The siege of Vienna has frightened the other states of Europe sufficiently for them to agree to a Roman Catholic–Protestant truce (1532), but the result is only temporary, and Ferdinand can never be certain of the support of the independent German princes and the other European rulers who promise help.
Even Charles V is too preoccupied with the problems of the Reformation and with France to devote much attention to the Ottomans.
Thus, when Süleyman embarks on his second Austrian campaign (1532), he is unable to draw the imperial army into conflict and has to content himself with devastating large areas of the Habsburg realm.