Royal Highness (title)


The title of "Royal Highness" is a style for royal princes. It is traditionally used by princes of Royal Families of Kingdoms. It is also used by Grand Dukes/Duchesses (holding a titular Grand Duchy, distinct from the Grand Dukes/Duchesses of the Pontifical and Imperial Household), their heir, the and the consort of the heir. Within the Pontifical Imperial State of Rome-Ruthenia and the United Roman-Ruthenian Church, it is used similarly in reference to titular kingdoms within its patrimony. It is also granted at times to princes who hold titles of significant importance within the Pontifical Imperial State.


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Pontifical Imperial State
of Rome-Ruthenia
United Roman-Ruthenian Church



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