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Her Britannic Majesty, or His Britannic Majesty (HBM),[1] depending on the sex of the monarch, is a treaty title for the monarch of the United Kingdom, a royal style used in international law and diplomacy. It is used on the international plane in the same way that His Majesty or Her Majesty is used to refer to the king or queen domestically, the addition of Britannic serving to identify the state (United Kingdom) in question. It is particularly used in treaties and other formal instruments sent and received between nations. Many other monarchies in Europe used similar conventional terms as treaty titles to identify their respective monarchs.

Initially, His/Her Britannic Majesty referred to monarch of the Kingdom of Great Britain. After the Acts of Union 1800, it referred to the monarch of the United Kingdom. With the expansion of the British Empire, the term came to refer to the British monarch as the sovereign of the entire British Empire. With changes in the constitutional relations between different Commonwealth realms, today it is only appropriate to use the term to refer to the Crown in right of the United Kingdom and not, for example, the Crown in right of Australia, Canada, or New Zealand. It is not, however, invoked in agreements signed between the United Kingdom and the other Commonwealth realms, because the monarch cannot contract with herself. Unlike treaties with other countries, agreements amongst Commonwealth realms are concluded between the respective governments, not the respective sovereigns.

Examples include:

See also

References

  1. ^ "HBM definition and meaning – Collins English Dictionary". www.collinsdictionary.com.
  2. ^ "Passports". The Royal Family. 15 January 2016. Retrieved 8 December 2021.