The paper aims to show that the Duke and King of Bohemia, Vladislav II Přemyslid, chose for himself wives who supported his political aspirations more strongly than other wives of the Přemyslid rulers. Both ladies, Gertrude and Judith, were closely related to the currently reigning ruler of the Reich, and these connections were one of the strengths of Vladislav's policy. Both Gertrude and Judith manifested their position not only as founders of monasteries, but were also active in the political sphere. In addition, Judith acted strongly to consolidate Vadislaus' monarchical power.