Tiara.  The cap or turban worn by the ancient Kings of Persia and of Armenia.  This differs from the cidaris, in as much as it was larger at the top than at the bottom, whilst the cidaris was of a conical form and terminated in a point, as may be seen on various medals of the Parthian King’s.  The cideris, with bow and quiver, on a denarius of Marc Antony (with Legend of IMP. TERTIO IIIVIR. R,P.C.), is a monument of the conquest of Armenia by that triumvir.  For Tigranes, the father of Artavasdes, who was taken captive by Antony, laid ths symbol of royalty at Pompey’s feet.  That the cidaris was also the mark as well of Armenian as of Parthian royality, is shown from the medals of Augustus, where the same king of tiara with bow and quiver accompanies the inscription DE PARTHIS and ARMENIA CAPTA.