Prince Archie’s sweet birthday wishes for his younger sister, Princess Lilibet, have become the subject of a new viral video, after home-movie footage released by Prince Harry and Meghan Markle as part of their Netflix docuseries has resurfaced on social media site TikTok.

Archie is Harry and Meghan’s eldest child, born in 2019 when both were still working members of the royal family in Britain. The couple spent Archie’s formative months at their home, Frogmore Cottage, in the grounds of Windsor Castle, before moving to the Montecito area of California in 2020.

The prince was joined by a baby sister in 2021, who their parents named in tribute to Queen Elizabeth II as “Lilibet.”

Lilibet spent her first birthday in Britain with Meghan, Harry and Archie, during the family’s first visit to the country as a foursome, to celebrate Queen Elizabeth II’s Platinum Jubilee.

Prince Archie photographed in South Africa, September 25, 2019. And (inset) the prince with his parents at Princess Lilibet’s birthday celebration in Windsor, as shown in the couple’s Netflix series, June 2022. Footage of Archie… More TOBY MELVILLE/POOL/SAMIR HUSSEIN/WIREIMAGE/NETFLIX
While staying at their former home of Frogmore Cottage, Harry and Meghan threw their daughter a private party with close friends, footage of which was revealed for the first time in the December 2022 Netflix docuseries, Harry & Meghan.

Uploaded to TikTok by user family.sussex, on January 15, a clip of the party footage has been viewed on the social media platform over half a million times so far, with the caption: “Prince Archie singing Happy Birthday to [his] little sister Princess Lilibet.”

The clip shows Archie dressed in a plain cotton shirt sitting in the garden of Frogmore Cottage as the princess is being sung to.

The clip has received in excess of 6,000 likes and 200 comments, many of which have praised the prince and the Sussex family.

“Adorable,” wrote one user, with another adding: “Cute little prince.”

A further commenter said: “Beautiful family.”

Archie will celebrate his fifth birthday on May 6, and has not returned to Britain since the 2022 jubilee visit.

In September 2022, Archie saw a major life change after the death of his great-grandmother, the queen.

Prior to this, his parents had decided to style their son as “Master Archie Harrison Mountbatten-Windsor,” as opposed to following royal tradition and using the lesser title which belonged to his father, of the Earl of Dumbarton.

After the queen’s death, and with the accession of his grandfather, King Charles III, Archie acquired new royal titles following rules within the monarchy known as the George V Convention.

This states that the children and grandchildren (through the male line) of a reigning monarch have the right to bare the titles of Prince or Princess of the United Kingdom, with the style of His or Her Royal Highness.

As such, from September 9, 2022, Archie officially became: His Royal Highness Prince Archie of Sussex. However, since Harry and Meghan are no longer working royals, they do not use their HRH styles and likely neither will their children.