Noun
shahanshah (plural shahanshahs)
(historical) King of kings; a title given to the rulers of ancient Persia and sometimes of Armenia.
O Cyrus, great King, King of Kings, Achaemenian King, King of the land of Iran. I, the Shahanshah of Iran, offer thee salutations from myself and from my nation. Rest in peace, for we are awake, and we will always stay awake. Muhammad Reza Pahlavi