Kate Middleton reveals one of her favorite photos of Prince Louis with sweet thank you note

Kate Middleton has delighted royal fans with a sweet thank you note - which has revealed one of her favorite photos of Prince Louis. 

• Prince Louis turned four in April and new photos of the royal were posted to Instagram.
• Kate Middleton included one of them in a thank you note to royal fans.
• In other royal news, Duchess Camilla stuns in jaw-dropping 70s jumpsuit in a serious move away from her usual style.

Prince Louis' birthday was celebrated with new photos, taken by his mother Kate Middleton in April. The photos show the young royal enjoying himself on the beach, in a cute jumper and shorts.

Kate and William shared four images of the mischievous tot on Instagram - however, the Duchess chose this one key photo of him for thank you notes that were sent to royal fans.

Prince Louis, who stole the show with his naughty behavior at the Queen's Platinum Jubilee, is just as photogenic as his older sister and brother, allowing the Duchess of Cambridge to take various shots of him for his birthday photos. However, Kate may have just revealed her favorite photo of her youngest son. 

After sending well wishes to Louis, with a birthday card, back in April, one royal fan revealed the cute thank you card they received back from the Duchess. Instagram account The Royal Mailbox posts pictures of royal replies and thank you cards - including replies from The Queen and the Duke and Duchess of Cornwall.

Posting an image of the thank you card to Instagram, they revealed it showed the picture of Louis looking directly at the camera, standing up and holding a cricket ball. The excited royal fan also added, "I received the reply for Prince Louis's 4th birthday yesterday! Sent: April 3, 2022 Received: July 27, 2022."

The Instagram post also showed the message inside the thank you note, which read, "The Duke and Duchess of Cambridge would like to thank you for writing to celebrate Prince Louis' fourth birthday. Prince Louis had a wonderful day and your message was so appreciated by Their Royal Highnesses who send you their warmest wishes." How sweet.

Prince Louis, who was 'warned' by Mike Tindall to behave at Platinum Pageant, is currently on holiday with parents Kate Middleton and Prince William, along with brother George and sister Charlotte.

Kate Middleton is becoming a keen photographer and seems to have taken on the duty of snapping all the official birthday photos. Earlier this month Duchess Camilla was captured by Kate Middleton for her 75th birthday photos. Camilla was snapped by her stepdaughter-in-law sitting in the gardens of Ray Mill House in Wiltshire.