The Italian island of Ventotene (from the Italian ‘vento’, meaning ‘wind’) is well-named. Every day I was there in June of this year was certainly a bad hair day. But there are ample rewards, if one can endure the bumpy, hour-long sea-crossing by hydrofoil. Honey-coloured villas and welcoming cafes where one can sip a glass of wine and enjoy the view of the harbour – it is the perfect place for someone looking for something a little out of the way. But the island’s remoteness once served another use. Under the Roman empire, Ventotene – or at it was known then, Pandateria – was a place of exile, a maritime oubliette for imperial Roman women who proved an embarrassment to the regime. It is these women, among others, who are the subject of my new book, Caesars’ Wives: Sex, Power and Politics in the Roman Empire.