The Princess of Wales's previously unseen Christmas photo has sparked a royal fan frenzy.
Kate shared a snap from 1983 of her enjoying Christmas as a child.
The picture was posted on social media as a part of a promotion for Kate's Christmas Carol Service that will be broadcast on Christmas Eve.
However, multiple royal fans were struck by the resemblance Prince Louis has to Kate in the photo.
Prince Louis is Prince William and Princess Kate's youngest child
PA
One wrote: "Prince Louis is definitely his mummy 2.0."
Another said: "What an adorable picture!! Prince Louis is you in this one."
A third posted: "So cute! And yes I can see [a] resemblance to all of your children, particularly Prince Louis!"
The Princess of Wales's previously unseen Christmas photo has sparked a royal fan frenzy.
The Middleton Family
Kate captioned the post: "Sharing some festive memories this Christmas because #ShapingUs is all about the vital importance of our early years and the role played by those around us in shaping the rest of our lives.
"[Camera emoji] of The Princess, Christmas 1983.
"Don’t miss the Together at Christmas Carol Service with
@earlychildhood this Christmas Eve at 7:45pm on @ITV."
Earlier this month, the Princess of Wales released a video of her launching the Christmas Baby Banks initiative.
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WATCH NOW: The Princess of Wales launches her Christmas Baby Bank initiative
The video of Kate and her three children, Prince George, Princess Charlotte and Prince Louis, helping out at a baby bank was shared on YouTube.
Kate's foundation, The Royal Foundation Centre for Early Childhood, launched an initiative at the end of November to support families with young children in the lead-up to Christmas.
The royal's film of her appearance at The Windsor Baby Bank based in Maidenhead, alongside her young children was widely praised online.