The Slaves of the Padishah by Mór Jókai

In order that the horizon may stand clearly before us, it must be said that in those days there were two important points in Hungary on the Transylvanian border: Grosswardein and Szathmár-Németi, which might be called the gates of Transylvania -- good places of refuge if their keys are in the hand of the Realm, but all the more dangerous when the hands of strangers dispose of them.

At this very time a German army was investing Szathmár and the Turks had sat down before Grosswardein, and the plumed helmets of the former were regarded as great a menace on the frontiers of the state as the half-moons themselves.