 After his death the union dissolved and as vassal tributary states, Moldavia and Wallachia still had internal autonomy and some external independence, which was finally lost in the 18th century.The Principality of Transylvania reached its golden age under the absolutist rule of Gábor Bethlen from 1613 to 1629.In 1699, Transylvania became a part of the Habsburg Monarchy following the Austrian victory over the Turks.