Royal Highness (
abbreviation HRH) is a
style used to address or refer to some members of
royal families, usually princes other than monarchs and their female
consorts (i.e., kings and queens). When used as a direct form of address, spoken or written, it takes the form "Your Royal Highness". When used as a
third-person reference, it is gender-specific (
Her Royal Highness or
His Royal Highness, both abbreviated
HRH) and, in plural,
Their Royal Highnesses (
TRH).