Catherine, the Princess of Wales, has issued a rare statement amid her battle with cancer.
Back in March, the 42-year-old Royal confirmed that she was battling cancer after undergoing abdominal surgery in January.
In a video message shared to the Royal Family's official social media channels at the time, Princess Catherine revealed: "The surgery was successful. However, tests after the operation found cancer had been present.
"My medical team therefore advised that I should undergo a course of preventative chemotherapy and I am now in the early stages of that treatment."
Since starting her treatment, the beloved Princess has been absent from royal duties, as she takes time for herself and her family.
Despite the understandable circumstances of her absence from the public eye, that hasn't stopped Princess Catherine from issuing an apology for missing the Trooping the Colour rehearsal on June 8.
(The Trooping the Colour is an annual event performed on Horse Guards Parade in London by regiments of Household Division. The ceremony is a celebration the official birthday of the British sovereign. This year, it will take place on June 15.)
Watch Princess Catherine's message being delivered below:
In a letter to the Irish Guards, the Princess - who is honorary Colonel of the Irish Guards - wrote: "I wanted to write and let you know how proud I am of the entire Regiment ahead of the Colonel’s Review and Trooping the Colour.
"I appreciate everyone trooping this year has been practicing for months, and dedicating many hours to ensuring their uniforms and drills are immaculate."
“Please pass my apologies to the whole Regiment, however I do hope that I am able to represent you all once again very soon. Please send my very best wishes and good luck to all involved," she continued, before signing off: "Colonel Catherine."
The Princess of Wales' message was later shared to the official X account for the Irish Guards, along with the caption: "The Irish Guards were deeply touched to receive a letter from our Colonel, Her Royal Highness, The Princess of Wales this morning.
"We continue to wish Her Royal Highness well in her recovery and send Her our very best wishes. Quis Separabit."
Princess Catherine usually partakes in the Colonel’s Review of the regiment, but amid her treatment, her role was filled by Lieutenant General James Bucknall, KCB, CBE.
Details on the Princess' health journey have been sparse since her initial announcement, as the Royal Family honors Princess Catherine's privacy.
Princess Catherine revealed that she has started preventive chemotherapy. Credit: Samir Hussein/WireImage/Getty Images
However, in a small update, husband Prince William did provide a glimmer of hope when asked about his wife's condition.
While attending a charity event, a member of the public asked the heir to the throne: "Do you mind if I ask how your wife and children are?
Prince William then responded: "All doing well, thank you. Yes, we’re doing well."
We continue to send our best wishes to Princess Catherine at this time.
