| Reigning monarchs | His Holiness (HH) • Apostolic Majesty (HAM) • Imperial and Royal Majesty (HI&RM) • Imperial Majesty (HIM) • Royal Majesty (HRM) • Majesty (HM) • Catholic Majesty (HCM) • Most Christian Majesty (HMCM) • Most Faithful Majesty (HFM) • Britannic Majesty (HBM) • Most Excellent Majesty • Most Gracious Majesty • Royal Highness (HRH) • Exalted Highness (HEH) • Highness (HH) • Serene Highness (HSH) | |
|---|---|---|
| Members of sovereign and noble families | Imperial and Royal Highness (HI&RH) • Imperial Highness (HIH) • Royal Highness (HRH) • Grand Ducal Highness (HGDH) • Highness (HH) • Ducal Serene Highness (HDSH) • Serene Highness (HSH) • Illustrious Highness (HIll.H) | |