A Roman marble statue of Empress Livia Drusilla is set to lead a sale of antiquities at Christie's London.
It's valued at £200,000-300,000 ($304,600-456,900) ahead of the auction on April 15.
Livia is one of the most fascinating figures in Roman history. She married the emperor Augustus in 37 BC and is thought to have wielded a huge amount of influence.
However, Christie's comments: "The irony will remain that, despite more being known about Livia's life than nearly any other Roman woman, the truth of how she acted, and what results these procured, is largely a mystery."
The statue is thought to have been produced during the reign of the emperor Tiberius, Livia's son, during the early years of the first century AD.
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