PUSKARTIS is a Croatian name found in (what is now) Burgenland Austria. The original spelling would be PUSKARIC The root of the name is puškar meaning rifle maker.
You ought to consider posting to the Burgenland board.
Here is a link to the Burgenland Bunch, which has many good resources including several articles about how the Croatians came to live in Burgenland, many of which were nobility from Croatia.http://www.the-burgenland-bunch.org/V_Histories/Reinersdorf....
Croatian Heritage Museum