A constitutional referendum regarding the Prince's powers was held in Liechtenstein on 14 March 2003.

The Constitution Peace Initiative asked voters whether to approve or disapprove of constitutional modifications, including modifications which would have restricted the Prince's powers.

[3] The BBC stated that the referendum in effect made Liechtenstein into an "absolute monarchy".

[4] In December 2002 the Venice commission of the Council of Europe published a comprehensive report analysing the amendments, opining that they were not compatible with the European standard of democracy.

[5] Prince Hans-Adam II had threatened to leave the country and live in exile in Vienna, Austria if the voters had chosen to restrict his powers.