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| Prince of Campinia|
Prins van Campinia
Elias of Campinia
|Style||His Royal Highness Majesty|
|First monarch||Guillaume I|
|Formation||20 December 2000|
The Prince of Campinia is the monarchical head of state of Campinia. Campinia has been a duchy since 2013, when it was elevated from a Principality,and is the world's only sovereign duchy. Since 2000, there have been three monarchs of Campinia, including the incumbent, Elias.