India, June 4 -- Meghan Markle penned a heartfelt letter to celebrate her daughter Lilibet's fourth birthday. The Duchess of Sussex shared two private photos of herself with her little daughter on Instagram.

The first black and white photo shows Lilbet sitting in her mother Meghan's lap on a boat, with the two of them appearing to be windswept.

The second photo features Meghan affectionately holding Lilibet while spending skin-to-skin time with the new family member in 2021.

"Happy birthday to our beautiful girl! Four years ago today she came into our lives - and each day is brighter and better because of it. Thanks to all of those sending love and celebrating her special day!" the Duchess of Sussex wrote.

In order to preserve her pri...