Queen Camilla's extended illness explained as royal cancels major appearance
Kate Middleton, Prince William and King Charles were all in attendance to welcome the amir of Qatar at Buckingham Palace Tuesday
{{#rendered}} {{/rendered}}Queen Camilla's ongoing chest infection continues to affect her royal duties.
On Tuesday, Her Majesty, who reduced her duties for the Qatar state visit this week as she recovers, told guests at the Buckingham Palace festivities her recent illness developed into a form of pneumonia, according to People.
The Queen, who did not attend the traditional kickoff at Horse Guards Parade in London Tuesday morning, was driven to the palace in the afternoon for the luncheon welcoming Sheikh Tamim bin Hamad Al Thani, the amir of Qatar, and his wife, Her Highness Sheikha Jawaher bint Hamad bin Suhaim Al Thani, the outlet reported.
{{#rendered}} {{/rendered}}QUEEN CAMILLA FORCED TO CANCEL EVENTS DUE TO CHEST INFECTION
Queen Camilla has been battling an ongoing illness. (Jonathan Brady/WPA Pool/Getty Images))
King Charles, Kate Middleton and Prince William were all in attendance to welcome the amir of Qatar.
Queen Camilla and King Charles welcomed the amir of Qatar and his wife. (Mina Kim-WPA Pool/Getty Images)
A representative for Buckingham Palace did not immediately respond to Fox News Digital's request for comment.
{{#rendered}} {{/rendered}}Kate Middleton and Prince William were in attendance for Tuesday's events. (Jonathan Brady/WPA Pool/Getty Images)
On Nov. 5, Her Majesty was advised to take a "short period of rest," effectively canceling Camilla's events for that week.
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"Her Majesty The Queen is currently unwell with a chest infection, for which her doctors have advised a short period of rest," a statement from the palace said, according to the BBC.
{{#rendered}} {{/rendered}}Her Majesty announced her illness Nov. 5. (Chris Jackson/Getty Images)
The royal family has been dealing with multiple health scares. Buckingham Palace announced King Charles III had been diagnosed with cancer in February, while Middleton announced her own cancer diagnosis one month later.
Kate Middleton had undergone planned abdominal surgery, and it was determined her condition was "non-cancerous." However, further testing showed "cancer had been present." She was advised to begin chemotherapy by her medical team.
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{{#rendered}} {{/rendered}}Middleton announced in September she was "cancer-free" after completing chemotherapy treatments. (Will Warr)
"This, of course, came as a huge shock, and William and I have been doing everything we can to process and manage this privately for the sake of our young family," the Princess of Wales said in a prerecorded message in March. "As you can imagine, this has taken time. It has taken me time to recover from major surgery in order to start my treatment. But, most importantly, it has taken us time to explain everything to George, Charlotte and Louis in a way that is appropriate for them, and to reassure them that I am going to be OK."
His Majesty returned to his royal duties in April, while Middleton, who revealed she was cancer-free in September, has slowly begun her return.
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{{#rendered}} {{/rendered}}Fox News Digital's Lauryn Overhultz contributed to this post.