Q) Did Daniel serve under Cyrus?
Daniel (biblical figure) Daniel (, Hebrew "God is my Judge") is the hero of the Book of Daniel. A noble Jewish youth of Jerusalem, he is taken into captivity by Nebuchadnezzar of Babylon and serves the king and his successors with loyalty and ability until the time of the Persian conqueror Cyrus, all the while remaining true to the God of Israel. Some conservative scholars continue to argue that Daniel was a genuine individual and that the book that bears his name reflects real history, but the broad consensus is that Daniel never existed and that the book is a cryptic allusion to the reign of the 2nd century BCE Greek king Antiochus IV Epiphanes.
Alexander the Great in the Quran The story of Dhul-Qarnayn (in Arabic ذو القرنين, literally ""The Two-Horned One"", also transliterated as Zul-Qarnain or Zulqarnain), mentioned in the Quran, may be a reference to Alexander III of Macedon (356–323 BC), popularly known as Alexander the Great.