Burgenland, “Land of the Castles”, was invented after World War I. At that time it was actually a Hungarian province with strong German speaking majority. For centuries this wouldn’t have made much of a difference, because Austria and Hungary were united under the reign of the Habsburg family. When the war was over and the emperor gone, it was time to part. Not much love was left between the two states, and each tried to cling to what it could get.
In the end Burgenland came to Austria. It is named after four cities with names ending on “burg”. Austria claimed all of them and got none. Three of them ended up in Hungary, one, (Preßburg, today Bratislava), was given to Czechoslovakia and is now the capital of Slovakia.