The Bertha de Felsőőr family is a still existing Hungarian noble family from Vas county, who moved to Sopron and Zala counties also. The family received noble title in exchange for his service as a border guard at Oberwart (Felsőőr). The family's nobility was confirmed on July 1, 1327, by Charles I. The first documented family name version was on January 18, 1582, by Rudolf II in Pressburg, when the family members were Márton, Mihály and Ferenc Bertha.

Oberwart is a town in Burgenland in southeast Austria on the banks of the Pinka River, and the capital of the district of the same name. With almost 8,000 inhabitants it’s the third largest town in Burgenland, after Eisenstadt and Neusiedl am See. Oberwart is the cultural capital of the small ethnic Hungarian minority in Burgenland, living in the Upper Őrség or Wart microregion.