Prince Harry's sweet birthday message to 'amazing wife' Meghan

Prince Harry an Instagram post wishing Meghan Markle a happy birthday with an adorable message. Photo / Getty Images

Prince Harry has taken to social media to share a heartfelt message for his wife Meghan's 38th birthday.

"Happy Birthday to my amazing wife. Thank you for joining me on this adventure! - Love, H," the Duke of Sussex wrote on Instagram.

Accompanying the message was a photo of Markle in Tonga last October, during their first international tour as a couple.

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Wishing HRH The Duchess of Sussex a very Happy Birthday 🎂 • ‘Happy Birthday to my amazing wife. Thank you for joining me on this adventure!’ - Love, H Photo©️PA/Doug Peters

A post shared by The Duke and Duchess of Sussex (@sussexroyal) on Aug 4, 2019 at 12:00am PDT

The Daily Mail reports the photo reached 90,000 likes in less than 20 minutes.

Prince William and Kate Middleton also took to Instagram to send their sister-in-law birthday wishes, writing "Wishing a very happy birthday to The Duchess of Sussex today!"

Their post featured an image of the foursome at last year's Sandringham Christmas service.

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Wishing a very happy birthday to The Duchess of Sussex today! 🎈

A post shared by Duke and Duchess of Cambridge (@kensingtonroyal) on Aug 4, 2019 at 1:01am PDT

According to the Daily Mail, the post was an attempt to mend the rift between the two couples, and royal fans took to the comments to share their support.

"Squad goals!" wrote one.

"Love this! Happy birthday to Meghan," wrote another.

Prince Charles and his wife Camilla also took to social media to wish the Duchess a happy birthday, and posted a photo gallery of images of the birthday girl with the caption: "A very Happy Birthday to HRH The Duchess of Sussex."

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A very Happy Birthday to HRH The Duchess of Sussex 🎉 📸 PA

A post shared by Clarence House (@clarencehouse) on Aug 4, 2019 at 1:04am PDT