Twelve monarchies, many ways to reign
Kingdom, principality, co-principality and elective office. Europe contains more models than a crown might suggest.

The European part of the atlas covers twelve contemporary monarchies: Belgium, Denmark, Spain, the Netherlands, Norway, Sweden and the United Kingdom, alongside Andorra, Liechtenstein, Luxembourg, Monaco and Vatican City. Poland is a separate historical subject. Japan and Korea extend the atlas beyond Europe; they do not increase the count of contemporary European monarchies.
A crown does not explain a constitution. Article 1 of Andorra’s constitution defines a parliamentary co-principality. Article 43 links its joint headship of state to the Bishop of Urgell and the President of the French Republic. This joins two offices rather than forming one hereditary dynasty.
Vatican City requires different terms. Its official website describes an absolute monarchy, and the Fundamental Law of 31 July 2026 assigns the sovereign full legislative, executive and judicial authority. The state must also be distinguished from the Holy See’s wider institutions.
Begin comparisons with three separate questions: how the office is filled, which acts the constitution permits, and who carries them out. A family tree answers only part of that enquiry.
Editorial notes2026-10-30
The atlas scope was checked: 12 current European monarchies and 3 further court contexts. Andorra’s Constitution and Vatican City’s 2026 Fundamental Law were compared.
Reviewed with AI assistance. The stated claims and choice of sources were examined; this is not independent academic peer review or a guarantee that no errors remain.
Materials used in the review- Constitution of the Principality of Andorra - art. 43 · https://www.consellgeneral.ad/fitxers/documents/constitucio/const-en ↗
- Państwo Watykańskie · ustrój i organy państwa · https://www.vaticanstate.va/en/state-and-government/government-bodies.html ↗
- Leon XIV · ustawa zasadnicza Państwa Watykańskiego, 31.07.2026 · https://www.vatican.va/content/leo-xiv/it/motu_proprio/documents/20260731-legge-fondamentale-scv.html ↗
Sources and further research
- Constitution of the Principality of Andorra - art. 43
Constitution of the Principality of Andorra - art. 43
- Państwo Watykańskie · ustrój i organy państwa
A source used to check specific claims. The RB-014 audit records the scope of access.
- Leon XIV · ustawa zasadnicza Państwa Watykańskiego, 31.07.2026
A source used to check specific claims. The RB-014 audit records the scope of access.
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