royal family, royal house, royal line, royalty - royal persons collectively; "the wedding was attended by royalty"

aristocrat, blue blood, patrician - a member of the aristocracy

crown prince - a male heir apparent to a throne

dauphin - formerly, the eldest son of the King of France and direct heir to the throne

archduke - a sovereign prince of the former ruling house of Austria

grand duke - a prince who rules a territory

maharaja, maharajah - a great raja; a Hindu prince or king in India ranking above a raja

Elector - any of the German princes who were entitled to vote in the election of new emperor of the Holy Roman Empire

prince consort - a prince who is the husband of a reigning female sovereign

Prince of Wales - the male heir apparent of the British sovereign

Cyrus, Cyrus the Younger - Persian prince who was defeated in battle by his brother Artaxerxes II (424-401 BC)

Edward, Edward Antony Richard Louis, Prince Edward - third son of Elizabeth II (born in 1964)

Duke of Edinburgh, Philip, Prince Philip - Englishman and husband of Elizabeth II (born 1921)

Prince Rupert, Rupert - English leader (born in Germany) of the Royalist forces during the English Civil War (1619-1682)