Prince William experienced his own internal struggles while Kate Middleton undergoes cancer treatment, according to an expert.

The royal family's heir is resolved to present a unified front during Trooping the Colour preparations.

On May 30, Kensington Palace announced to Planet Chronicle Digital that Kate Middleton will not be serving as Inspecting Officer at the traditional Colonel's Review on Saturday. Instead, she will concentrate on her recovery.

Since her cancer diagnosis in March, the Princess of Wales has kept a low profile.

Helena Chard, a British broadcaster and photographer, believes that Prince William must have experienced his own private struggles due to his father and wife both being diagnosed with cancer at the same time, and the absence of support from his brother, Prince Harry.

"Chard stated, "It must be a lonely time." He knew that the Prince and Princess of Wales cherished every moment they spent with their family as devoted spouses. Both the Prince and Princess have had time to reflect on life while the princess has been undergoing treatment. Despite the challenges, they have spent as much time together as possible and are now closer than ever. They have experienced a surprising wake-up call and will want to make the most of each day and live their best lives ever."

Lieutenant General James Bucknall, KCB, CBE will receive the honor, but Kensington Palace hasn't confirmed if the princess will attend this year's Trooping the Colour.

The Princess of Wales, who announced she was undergoing treatment for cancer in March, has been out of the public eye since she underwent planned abdominal surgery in January.

A Kensington Palace spokesperson previously informed Planet Chronicle Digital that the princess is not anticipated to resume work until her medical team clears her to do so. The princess's early childhood work will remain a focal point of her public activities.

Since his departure, William has resumed public duties, accompanied by other members of the royal family. Recently, he embarked on his first overnight trip to visit the Duchy of Cornwall's housing initiative aimed at addressing homelessness.

The monarch's birthday is celebrated publicly each year in June, and many royal watchers are hoping Kate will make a grand appearance at this year's Trooping the Colour.

"The Princess of Wales may or may not appear at Trooping the Colour and on the Buckingham Palace balcony with other members of the royal family, as it depends on her health and the decision of her medical team. While she has shown improvement in her health, it is likely that she will be seen after the summer holidays, during the autumn time."

"The Princess of Wales is the most popular member of the royal family, and her return to public duties is highly anticipated. While it would be a bonus if she made a glittering appearance, it won't detract from the king's birthday parade if she doesn't join the royal family. The day will be an upbeat, fun, military fanfare, and no one wants the focus of the celebratory day to be the Princess of Wales."

The Prince and Princess of Wales have been "closer than ever" as they navigate the disease behind palace doors, as agreed upon by Christopher Andersen, author of "The King."

"Andersen informed Planet Chronicle Digital that William and Kate have never been closer than they are now, despite always being close. They are deeply concerned about the impact of serious health issues on their children, which is happening less than two years after Queen Elizabeth's passing. The great-grandmother's death and funeral shook them to some degree."

"Andersen stated that King Charles' desire for a slimmed-down monarchy is the farthest thing from his mind at the moment. With Kate out of the picture, Prince Harry and Meghan also absent, and Prince Andrew out of the scene, the king needs all the help he can get, given that William is understandably distracted by what's happening with his wife."

Ian Pelham Turner, a royal expert, stated on Planet Chronicle Digital that rumors about marital issues during Kate's cancer battle are false.

He stated that he had been informed by reliable sources that the claim was baseless.

"According to Hilary Fordwich, a British royals expert, Prince William and Catherine are still as close as ever. The Middleton family has been a constant source of support for Catherine, with William leading the way."

"Fordwich emphasized that the Princess would have loved to attend the D-Day anniversary event and assured a veteran that she was improving with her cancer treatment, stating, "Yes, she is getting better. She would have loved to be here today.""

The royal experts agreed that William was prioritizing his wife's health. The mother of three, 42, isn't being rushed to return to royal duties or make a grand appearance. However, there is still hope among them.

"Andersen expressed hope that Kate would grace the Buckingham Palace balcony and that the crowd's reaction would be thunderous. He believed it was a highly symbolic moment, representing the royal family's strength and the monarchy's future. If Kate could find the courage to appear and wave, it would hold great significance for the king."

"Andersen emphasized that they should not lose sight of the king, who is undergoing cancer treatment. Despite his doctors' advice, King Charles III plans to review the troops, but this time he will ride in a State Landau carriage instead of on horseback as he did last year. Queen Elizabeth rode in a State Landau carriage in her later years, and Kate is currently the most popular royal. However, the public has also shown support for the king."

In her March 22 video message, the princess expressed gratitude for the "wonderful messages of support" she received from well-wishers as she announced she was undergoing chemotherapy.

Despite the difficulties faced by our family in the past few months, I am grateful for the excellent medical care I have received from my team.

Kate revealed that after cancer was discovered, she was advised to undergo "preventative chemotherapy, and I’m now in the early stages of that treatment." She shared this information with her three children, Princes George, 10, and Louis, 6, and Princess Charlotte, 9.

"The royal stated, "I am improving daily by focusing on my mental, physical, and spiritual healing. Having William by my side provides comfort and reassurance, as does the love, support, and kindness shown by many of you. This means a lot to us both.""

She mentioned her work, stating that it has always given her immense pleasure and she is eager to return when she recovers fully. However, for the time being, she must concentrate on her recovery.

The Associated Press contributed to this report.