Keeping Up Appearances vocabulary

a name used by the Imam of the Nizari Ismailis. The current user of the name is the 49th Imam (1957–present), Prince Shah Karim Al Husseini Aga Khan IV (b. 1936).

According to Farhad Daftary, Aga Khan is an honorific title bestowed on Hasan Ali Shah (1800–1881), the 46th Imam of Nizari Ismailis (1817–1881), by Persian king Fath-Ali Shah Qajar. However, Daftary contradicts what the Aga Khan III noted in a famous legal proceeding in India: that Aga Khan is not a title but instead a sort of alias or "pet name" that was given to the Aga Khan I when he was a young man.