The Prince and Princess of Wales have marked Louis's birthday with a post to social media.
A picture of a grinning Louis, leaning with his arms folded, in a blue textured quarter-zip style jumper, was posted to Instagram on Thursday.
Image: Louis, the youngest of William and Kate's children, has become known for his cheeky personality. Pic: PA
The caption read: "Happy birthday, Louis! 8 today!" followed by a red balloon emoji.
William and Kate's youngest, Louis is known for his cheeky nature.
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The picture was taken earlier this month by photographer Matt Porteous, to whom the Waleses often turn to mark family occasions.