After the defeat of the Czech estates in the Battle of the 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. Despite these limitations, the Diet and its committees, like the Diets in Austria, remained an effective means of political co-decision. In their meetings, usually once a year, the estates could, through the amount of taxes, resist the lords of the land. All direct and indirect taxes, with the exception of the collection of customs duties, remained within the competence of the estates.  The Diet was thus a relic of the estate power rather than an absolutist instrument and even by the 1830s, the diet was again a base for organizing the opposition and a place of political friction.