You're welcome.
So Kunstadt, Czech Republic it is for your research.
The Czech Republic [Bohemia, Moravia] was ruled by Austria.
Since your ancestor was Jewish, did you check out
www.jewishgen.org GABONY and GABANY would be Hungarian spelling.
It was
http://users.erols.com/mwhite28/austhung.htmhttp://www.brainworker.ch/Oesterreich/Austria-hungary.png