Meghan Markle, Prince Harry wish nephew Prince George a happy birthday© Getty Images/Duchess of Cambridge

See Meghan Markle and Prince Harry's birthday wish for nephew Prince George

Prince George celebrated his sixth birthday on July 22


UPDATED JULY 22, 2019 1:50 PM EDT

Prince George turned six years old on Monday, July 22. In celebration of the future King’s birthday, aunt Meghan Markle and uncle Prince Harry posted a sweet comment on one of the three new photos Kensington Palace shared of George to mark his big day. "Happy Birthday 🎂🎈 Wishing you a very special day and lots of love!" SussexRoyal’s message, which noticeably omitted the Prince’s name, read.

 
Meghan Markle, Prince Harry wish nephew Prince George a happy birthday © The Duchess of Cambridge
 Meghan and Harry commented on Prince George's birthday photo

The Duke and Duchess of Sussex’s birthday comments have become a tradition for the royal couple. Since launching their independent social media account, Meghan and Harry have posted birthday wishes on Kensington Palace’s account for Princess Charlotte, Prince Louis, and Prince William. The Duke of Cambridge’s birthday wish was perhaps the most formal: “Happy Birthday to the Duke of Cambridge!" Meanwhile, Charlotte and Louis’ were informal with wishes that did not include their proper titles: “Happy Birthday, Charlotte! 🎂🎈 Lots of love, H and M xo" and "Happy Birthday Louis! Sending lots of love from both of us 🎂🎈 xo."

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Archie Harrison’s parents weren’t the only royals to wish Prince George a happy birthday on Monday. Grandfather Prince Charles and Camilla shared the birthday boy’s new portraits with a message that read in part: “A very Happy Birthday to Prince George, who turns six today. 🎂” Buckingham Palace also posted the images taken by Kate Middleton writing: “Happy Birthday to Prince George who is six years old today."

 
© The Duchess of Cambridge
 Kensington Palace shared three new photos of the future King to mark his sixth birthday

Meanwhile, Prince Andrew shared a photo of Prince George taken at his daughter Princess Eugenie’s royal wedding last year. Alongside the image, he wrote: “Wishing Prince George a very Happy 6th Birthday! In October 2018, His Royal Highness was a pageboy at the wedding of Princess Eugenie and Jack Brooksbank at Windsor Castle.”

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George is currently celebrating his birthday on the private island of Mustique with his parents and younger siblings. The Caribbean island is a favorite of the Cambridges, and where George rang in his fifth birthday last year. With a no-fly zone enforced over Mustique, and the discretion of other guests, the royals are able to relax away from the public eye. In keeping with tradition, Prince William and Kate released new photos of their son in celebration of his birthday, which were taken by the Duchess of Cambridge for the first time.