OT *Pakled:  Darius?  Alexander? or Xerxes? ..;)

Sorry, missed this...   I think Darius I built Persepolis, didn't he, although I don't know if it was finished in his lifetime.   I suppose I had him in mind.   For obvious reasons, Greeks were less likely to regard Xerxes as "Great", although some of his successors managed to recover the kudos which he had dissipated.   In Classical Greek, basileus meant "king", but, in Athens, which didn't have kings from a fairly early date, it was the title of a pretty feeble official.*   Any other king, to the Greeks, was ho basileus, i.e. "the king", except for the Great King of Persia, who ruled such a vast empire (and it was incredibly vast) that no other king could possibly compare.   The Persian king was Basileus - capital Beta, no need for a definite article (Greek doesn't have an indefinite one).    It gets traditionally translated as "Great King" into English.  

Alexander burned Persepolis, reputedly during a drink-fuelled banquet.   Handel set it to music, in a very genteel sort of way.