After the adorable Prince Louis' first birthday last month, the Duchess of Cambridge decided to send out special thank you cards to those who wished her youngest a happy birthday.
Using one of the photos Kate Middleton took of her son on his big day, the Duke and Duchess decided on one specific one to send to the royal fans who had sent their best wishes to Louis.
Instagram user @loopycrown3 posted the special card she received from the Cambridge's to her social media.
The front of the card donned a photo of bonny Prince Louis sitting outside in a warm red, knitted jumper and looking up and away from the camera with a big grin.
The inside of the card sported a lovely message that read: 'The Duke and Duchess of Cambridge are most grateful for the thoughtful message you sent to Prince Louis on the occasion of his first birthday. It really was kind of you and greatly appreciated.'