 These measures, plus a massive levy imposed on the Italian towns, caused the Guelph cities to turn against Henry, and he encountered further resistance when he sought to enforce imperial claims on what had become communal lands and rights, and attempted to replace communal regulations with imperial laws.Nevertheless, Henry managed to restore some semblance of imperial power in parts of northern Italy.Cities such as Parma, Lodi, Verona and Padua all accepted his rule.