The Cambridges posted a snap of a young Kate and her mother Carole Middleton on their Kensington Palace Twitter and Instagram accounts.
They also shared a photo of a cake made by Prince George, Princess Charlotte and Prince Louis.
The caption said: “Celebrating two other special mothers today.
“Cake made by George, Charlotte and Louis.”
Earlier today, William and Kate posted pictures of cards made by their three children to Princess Diana for Mother’s Day.
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