text: The Diet was officially divided into two chambers in Royal Hungary in 1608. All adult male members of the titled noble families had a seat in the Upper House. The lesser noblemen elected two or three delegates at the general assemblies of the counties to represent them in the Lower House. The Croatian and Slavonian magnates also had seats at the Upper House, and the  (or Diet) of Croatia and Slavonia sent delegates to the Lower House.
  Liberation and war of independence
  Forces from the Holy Roman Empire and the Polish–Lithuanian Commonwealth inflicted a crushing defeat on the Ottomans at Vienna in 1683. The Ottomans were expelled from Buda in 1686. Michael I Apafi, the prince of Transylvania (), acknowledged the suzerainty of Emperor Leopold I, who was also king of Hungary (), in 1687. Grateful for the liberation of Buda, the Diet abolished the noblemen's right to resist the monarch for the defense of their liberties. In 1688, the Diet authorized the aristocrats to establish a special trust, known as , with royal consent to prevent the distribution of their landed wealth among their descendants. In accordance with the traditional concept of , inherited estates could not be subject to the trust. Estates in  were always held by one person, but he was responsible for the proper boarding of his relatives.