Imperial and Royal Majesty

His/Her Imperial and Royal Majesty was the style used by King-Emperors and their consorts as heads of imperial dynasties that were simultaneously royal. The style was used by the Emperor of Austria, who was also the King of Hungary and Bohemia and also by the German Emperor, who was also the King of Prussia. The Austrian and Bohemian monarchies were abolished in 1918 while the vacant throne of Hungary continued to exist until the 1940s.

Examples

• Franz Joseph I of Austria was further titled "His Imperial and Royal Apostolic Majesty" (Seine Kaiserliche und Königlich Apostolische Majestät) along with his consort Empress Elisabeth, who was styled "Her Imperial and Royal Apostolic Majesty" (Ihre Kaiserliche und Königlich Apostolische Majestät). The plural for the couple was also used as "Their Imperial and Royal Apostolic Majesties" (Ihre Kaiserlichen und Königlich Apostolischen Majestäten).
• Queen Victoria of the United Kingdom reigned as Queen-Empress of India between 1876 and 1901. The Kings that followed her, Edward VII, George V, Edward VIII and George VI reigned as King-Emperors (1901-1947). However these monarchs did not use the style Imperial and Royal Majesty preferring the style His/Her Majesty instead.
• Napoleon I was also styled Imperial and Royal Majesty between 1805 and 1814 as Emperor of the French and King of Italy.
• The last king-emperor to use that style was Mohammad Reza Shah Pahlavi, the Shah of Iran (r: 1941—1979).

•  • e Styles used by monarchs and royalty
Reigning monarchs	Apostolic Majesty (HAM) • His Holiness (HH) • Imperial and Royal Majesty (HI&RM) • Imperial Majesty (HIM) • Majesty (HM) • Catholic Majesty (HCM) • Most Christian Majesty (HCM) • Most Faithful Majesty (HFM) • Royal Highness (HRH) • Highness (HH) • Serene Highness (HSH)	Imperial Crown of the Austrian Empire
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)