The princes of Transylvania were sandwiched between the Ottoman Empire to the south and the Hapsburg dominions to the west and attempted to maintain independence from both. The Hapsburgs reconquered Hungary from the Turks in the 1680's and ended Transylvanian autonomy.
The Habsburgs acquired the territory shortly after the Battle of Vienna in 1683. In 1687, the rulers of Transylvania recognized the the rule of the Habsburg emperor Leopold I, and the region was officially attached to the Habsburg Empire. The Habsburgs acknowledged Principality of Transylvania as one of the Lands of the Crown of Saint Stephen,but the territory of principality was administratively separated from Habsburg Hungary and subjected to the direct rule of the emperor's governors. In 1699 the Turks legally conceded their loss of Transylvania in the Treaty of Karlowitz; however, some anti-Habsburg elements within the principality submitted to the emperor only in the 1711 Peace of Sathmar. After the Ausgleich of 1867, the Principality of Transylvania was abolished and its territory was absorbed into Transleithania or the Hungarian part of the newly established Austro-Hungarian Empire.The Principality of Transylvania, from 1765 Grand Principality of Transylvania, was a crown land of the Habsburg Monarchy and a constituent land of the Austrian Empire.
1683. Hungary. Transylvania, Principality. Imre Thököly (1690-1691). AR Medal. 45.5mm, 27.46gr. By Johann Engelhart of Breslau. Dated 1683 (in Roman numerals). EMERIC · TOC · KOL · HUNGAROR · REBELL · CAPUT ·, Obv: Armored and draped bust right. Rev: (rosette) RETROCA DIT AUDAX (The reckless one falls back), Icarus falling from the sky; a second winged figure to the left; above, radiant sun; below, tower on island in the sea; MDC LXXXIII in exergue. Resch 81.; Coll. Horsky. Of great rarity. PCGS SP-62.
1715/3. Charles VI (1711-1740) Taler. DAV-1101. Transylvania. Siebenbürgen Mint. One of the scarcest pieces in the collection. Seldom seen in auctions and only graded mint state piece by either grading service. Beautiful toning over remaining luster. 1715/3 Overdate. A centerpiece of the collection. NGC MS-62.