In 1690 , the Habsburgs gained possession of Transylvania through the Hungarian crown .
During most of the 16th and 17th centuries , the principality was a vassal state of the Ottoman Empire ; however , the principality had dual suzerainty ( Ottoman and Habsburg ) .
In 1690 , the Habsburg gained possession of Transylvania through the Hungarian crown .
During most of the 16th and 17th centuries , the principality was a vassal state of the Ottoman Empire ; however , the principality had dual suzerainty ( Ottoman and Habsburg ) .