أمير المؤمنين
Amir al-Mu'minin () is an Arabic title that is usually translated "Commander of the Faithful". It is also translated as "Prince of the Believers" since or emir is also used as a princely title in states ruled by the royalty or monarchies. However, orientalist historian H. A. R. Gibb notes that this is "neither philologically nor historically correct". The title is latinized as , hence Italian , Sicilian "Miramulinu," French , Spanish and Portuguese , and in Byzantine Greek, .