Royal assent is the method by which a monarch formally approves an act of the legislature (either directly, or through an official acting on the monarch's behalf). In some jurisdictions, royal assent is equivalent to promulgation, while in others that is a separate step. Under a modern constitutional monarchy royal assent is considered to be little more than a formality; even in those nations which still, in theory, permit the monarch to withhold assent to laws (such as the United Kingdom, Norway, and Liechtenstein), the monarch almost never does so, save in a dire political emergency or upon the advice of their government. While the power to veto a law by withholding royal assent was once exercised often by European monarchs, such an occurrence has been very rare since the eighteenth century. Royal assent is sometimes associated with elaborate ceremonies. In the United Kingdom, for instance, the sovereign may appear personally in the House of Lords or may appoint Lords Commissioners, who announce that royal assent has been granted at a ceremony held at the Palace of Westminster for this purpose. However, royal assent is usually granted less ceremonially by letters patent. In other nations, such as Australia, the governor-general (as the monarch's representative) merely signs a bill. In Canada, the governor general may give assent either in person at a ceremony held in the Senate or by a written declaration notifying parliament of their agreement to the bill. Before the Royal Assent by Commission Act 1541 became law, assent was always required to be given by the sovereign in person before Parliament. The last time royal assent was given by the sovereign in person in Parliament was in the reign of Queen Victoria at a prorogation on 12 August 1854. The Act was repealed and replaced by the Royal Assent Act 1967. However section 1(2) of that Act does not prevent the sovereign from declaring assent in person if he or she so desires.