THE TRAITORS viewers are only just realising Claudia Winkleman has a famous sister with a royal connection.
Claudia, 52, has been gracing the small screen every night as the host of BBC One's smash-hit reality show.
And while she's a household name in her own right, it's only now that some fans have learnt of her connections in high places.
Her sister is the actress Sophie Winkleman, 43, who appeared on Peep Show and the new Wonka movie.
Taking to X, somebody wrote, "Fun Fact: @bbcthetraitors presenter is Claudia Winkleman, who is of course the sister of Sophie, the Lady Frederick Windsor."
Another added, "Claudia Winkleman's sister, Sophie, is married to the Duke of Kent's son. She is part of the Royal Family and socialises with them."
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A third chimed in with, "To think that Claudia Winkleman is related to the Royal Family. Her half-sister Sophie is married to Lord Frederick Windsor, son of Queen Elizabeth II's first cousin Prince Michael of Kent."
Sophie married Lord Frederick Windsor at Hampton Court Palace in 2009, and took on the title of Lady Windsor after their union.
Her parents are Barry Winkleman, who published the Times Atlas of World History, and the author Cindy Black.
Claudia is from her dad's side of the family and was born during Barry's first marriage. They are half-sisters.
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The Strictly host's mum is Eve Pollard, a prominent former tabloid journalist and editor.
, Sophie recently lifted the lid on what King Charles is like behind closed doors, describing him as a “very dear friend.”
She told the publication: ‘I spend a bit of time with him.
“You see how he works all day long, has a quick supper and then disappears until about 4am to write letters.
“He cares about so many things and he comes up with brilliant solutions.”