Romanorum Imperator
This painting is of a story in Pliny where Cleopatra bet Marcus Antonius that she could stage a more lavish feast. At the end of the meal Cleopatra took off her pearl earring, dropped it into a glass of vinegar and drank it, winning the bet.  
It is currently in the National Gallery of Victoria. 

This painting is of a story in Pliny where Cleopatra bet Marcus Antonius that she could stage a more lavish feast. At the end of the meal Cleopatra took off her pearl earring, dropped it into a glass of vinegar and drank it, winning the bet.  

It is currently in the National Gallery of Victoria.