Sarah Ferguson told the audience at the Cannes Film Festival to be quiet during a speech on stage at the event.
The Duchess of York repeatedly said “stop” as she moved a microphone closer and further away from her face during the speech.
Ferguson thanked Simon de Pury, who created a portrait of the late Queen Elizabeth II which was auctioned off for £405k in aid of charity.
The Duchess, who was wearing a £13,000 Lilith Cocktail Dress, hit out at the crowd in attendance at the 77th Cannes Film Festival gala auction.
The Duchess of York repeatedly said “stop” as she moved a microphone closer and further away from her face during the speech.
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She said: ‘Quiet! because the incredible person Simon de Pury has done an amazing job tonight, this is exceptional, and all I want to say to everyone in this room is stop, stop, stop.
“Did you see I removed the microphone, because all of you are saying ‘I want to go, because where is the next party? What are we meant to be doing next?’
“But what I want to say is why are we here?
“What is the future and why are we not making our planet better for the youth of tomorrow?
The Duchess was wearing a £13,000 Lilith Cocktail Dress
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“I am so sorry that we have completely destroyed your planet, but thanks to amFAR and these people with scientific brilliance.”
The clip showing Sarah Ferguson’s message to the audience ends before she concludes her speech.
Ferguson is the ex-wife of Prince Andrew and the mother of Princess Beatrice and Princess Eugenie.
Earlier this week, Princess Beatrice paid tribute to her mother at an event in London.
Ferguson is the ex-wife of Prince Andrew and the mother of Princess Beatrice and Princess Eugenie.
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Earlier this week, Princess Beatrice paid tribute to her mother at an event in London.
PA
The royal visited West Thornton Primary School in Croydon as part of Oscar’s Book Club in association with Amazon Reading Volunteers.
Beatrice said: “I grew up with an incredible mum as a children’s author, so stories really created that sense of imagination.
“I really appreciate what stories can do, that special quality time, that moment at the end of the day, but also how important reading is in general for young people.
“We do everything we can to make sure these books get into the hands of those that need it most.”