The photo, which was taken earlier this month, shows Prince William gazing adoringly into the eyes of the sweetest Cocker Spaniel puppy.
"Happy birthday! Love C, G, C, L, Orla and the puppies!", shared Kensington Palace, signing off the post with a pair of little paw prints.
The most adorable litter
The family's beloved companion Orla gave birth to the puppies earlier this year, having been gifted to them in 2022 after the sudden loss of their dog Lupo.
Three of the four puppies enjoyed time playing around the grass, as they prepare to go on to their forever homes.
Celebrating Prince William
The photo marked a moment of pure joy for the family, as the Princess of Wales works to find the right balance following her cancer diagnosis.
She decided not to attend Royal Ascot earlier this week, prioritising quality time with her family.
The birthday post melted the hearts of dog lovers around the UK. "Wishing Prince William a very happy birthday! May it be filled with love, laughter, and lots of puppy cuddles", wrote a viewer.
