King Ozymandias of Assyria was running low on cash. His country had been at war with the Hittites for years. But he did have the Star of the Euphrates, the most valuable diamond at the time. So he decided to take it to Croesus the pawnbroker.

When he asked for a loan, Croesus said, "I'll give you 100,000 dinars."

 The king quickly objected, "But I paid a million dinars for it. Don't you know who I am? I'm King Ozymandias!"

 Croesus was not impressed. He replied,

"When you wish to pawn a star, it makes no difference who you are."

:D