Outside Prague, Charles attempted to expand the Bohemian crown lands, using his imperial authority to acquire fiefs in Silesia, the Upper Palatinate, and Franconia. The latter regions comprised "New Bohemia", a string of possessions intended to link Bohemia with the Luxemburg territories in the Rhineland. The Bohemian estates, however, were not willing to support Charles in these ventures. When Charles sought to codify Bohemian law in the Maiestas Carolina of 1355, he met with sharp resistance. After that point, Charles found it expedient to scale back his efforts at centralization.