The Bohemian Diet (Czech: Český zemský sněm, German: Böhmischer Landtag) was the parliament of the Kingdom of Bohemia within the Austro-Hungarian Empire between 1861 and Czechoslovak independence in 1918.The chairman of the assembly was called the Supreme Burgrave (Czech: Nejvyšší purkrabí, German: Oberstburggraf ).[2] After the defeat of the Bohemian estates in the Battle of White Mountain, Ferdinand II would proclaim in 1627 for Bohemia and 1628 for Moravia the Renewed Regional Code, in which the monopoly position of the states was abolished in favour of the provincial government.All direct and indirect taxes, with the exception of the collection of customs duties, remained within the competence of the estates.[4] Only during the reign of Maria Theresa was the strong share of estates in power permanently limited.