In Monaco, the Prince and His family are traditionally addressed as "Sovereign Prince" and "Princess," followed by their appropriate titles, such as "His Serene Highness" or "Her Serene Highness."
Substitute 'His/Her Majesty' or 'His/Her Royal Highness' for 'he/she' and 'His/Her Majesty's' or 'His/Her Royal Highness's' for 'his/her'. Alternate the above with 'The King/The Queen/The Prince/The Princess/ The Duke/The Duchess', as applicable, to avoid repetition of 'His Majesty' or HRH etc.
Prince Albert II is addressed as His Serene Highness Albert II, Sovereign Prince of Monaco. The children and the wife of a Sovereign Prince are addressed as His/Her Serene Highness.
His/Her Serene Highness (abbreviation: HSH, second person address: Your Serene Highness) is a style used today by the reigning families of Liechtenstein, Monaco and Thailand.
The Prince and his family are typically addressed with formal titles such as "His Serene Highness" for the Prince and "Her Serene Highness" for his wife, followed by their first names.
