To mark the occasion, Meghan released a video of herself with the one-year-old this week. In the video, Meghan is seen reading a book to Archie much to the joy of royal fans across the world. The video was released in aid of Save the Stories campaign in the UK and the US, which brings support for children who have been impacted by the COVID-19 pandemic.
In the US, the campaign was spearheaded by Hollywood stars Jennifer Garner and Amy Adams, with the former issuing a surprise post to Meghan for her help in supporting the campaign.
In the post, Jennifer said: "Thank you for sharing your gorgeous son with the world and allowing us to join you in celebrating his first birthday.
"We are humbled and grateful that you chose @savewithstories to mark this special day and in so doing - have raised the visibility of @savethechildren's work in the US and UK and have helped feed and educate children in desperate need of both.
"More than anything - watching you lovingly talk through the pictures while your clever Archie turns the pages - lifts all of us up and reminds us that what may seem like a duck just might turn out to be a rabbit.
Meghan Markle: Archie praised by Hollywood star (Image: Save the Children)
Meghan Markle: Some speculated the book was from Oprah Winfrey (Image: Save the Children)
"Thank you for this joyful and meaningful shift in perspective. Best, Jen."
Amy also said: "Thank you so much Meghan, The Duchess of Sussex for reading to us.
"Love this book and happy 1st birthday to Archie."
Following the release of the video, a statement confirmed Harry and Meghan had wanted to highlight the importance of the campaign on their son's birthday.
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Meghan Markle: Meghan read the book to her child (Image: Save the Children)