"Lili is named after her great-grandmother, Her Majesty The Queen, whose family nickname is Lilibet. Her middle name, Diana, was chosen to honor her beloved late grandmother, The Princess of Wales," a statement read, in part. "This is the second child for the couple, who also have a two-year-old son named Archie Harrison Mountbatten-Windsor. The Duke and Duchess thank you for your warm wishes and prayers as they enjoy this special time as a family."
Though Harry's friction with his family has made headlines following his and Meghan's departure from the royal family in early 2020 and recent Oprah Winfrey interview, the family offered their well wishes on Harry and Meghan's new addition on Sunday.
According to a statement, the queen, Prince Charles and Camilla and Prince William and Kate Middleton are "delighted" by the news.
"The Queen, The Prince of Wales and The Duchess of Cornwall, and The Duke and Duchess of Cambridge have been informed and are delighted with the news of the birth of a daughter for The Duke and Duchess of Sussex," a Buckingham Palace spokesperson said in a statement.
Charles and Camilla followed with a personal message of their own, writing, "Congratulations to Harry, Meghan and Archie on the arrival of baby Lilibet Diana. Wishing them all well at this special time."
Congratulations to Harry, Meghan and Archie on the arrival of baby Lilibet Diana 🎊
And Prince Harry's cousin, Princess Eugenie, also celebrated the happy news on her Instagram Story.
"Congratulations dear cousins.. we couldn't be happier for you all," she wrote, adding several red heart emojis.
ET has learned that the royal family made a coordinated public effort to congratulate and offer Harry and Meghan well wishes on social media, but ET has learned that privately there are still lingering feelings of disappointment and anger after the couples claims in their explosive interview with Oprah Winfrey in March.