In the 1860s the Old Czech were the dominant party in Bohemian politics. They were criticized for abstaining from the election for the Bohemian Diet in protest against the centralist theories of the February Patent. Tensions rose when the Young Czechs supported the rebel cause during the Polish Revolution of 1863 and the Old Czechs condemned it. Julius and Eduard Grégr attacked the Old Czechs for sacrificing liberal nationalist goals in favor of the aims of the Bohemian feudal nobles during the accepted boycott of the Diet in Prague and the imperial Parliament in Vienna. Protests became widespread as the national discontent with the Old Czechs grew. This gave the Young Czechs a strong base of support to expand their political control.