British Army initially announcement that Princess of Wales Catherine to pay official duty since undergoing surgery at her father-in-law King Charles III's birthday celebrations in June.
The British Army initially said that Catherine, who is married to heir to the throne Prince William, would review soldiers on June 8 as part of the annual Trooping the Colour ceremony.
Kate and William's Kensington Palace office did not formally confirm her appearance and the Army later removed a reference to it from its website.
The army's website listed the king, who is being treated for cancer, as attending the main military parade on June 15, which marks his official birthday.
The 42-year-old princess has been recovering mainly at the home she shares with William and their three young children in Windsor, west of London, since leaving hospital on January 29.
Joe Little, managing editor of Majesty Magazine, said the photograph had "generated more speculation".
"It's a tricky situation because we're all entitled to our privacy when we are unwell," he told AFP.
"But when you are a member of the royal family that is quite complicated and difficult to maintain, there is naturally a huge amount of public interest."
Catherine, Princess of Wales, will attend her father-in-law King Charles III's birthday celebrations on June 8, her first official duty to be confirmed since undergoing surgery in January, the Ministry of Defence said Tuesday.
The British Army posted the engagement on its official website, saying Catherine, who is married to heir to the throne Prince William, will help review soldiers as part of the annual Trooping the Colour.
Kate and William's Kensington Palace office has not confirmed her appearance at the event.
Meanwhile the king, who is currently being treated for cancer, is scheduled to review troops at the Trooping the Colour main event on June 15, according to the army website.
Charles on Tuesday held an in-person audience with finance minister Jeremy Hunt ahead of the government's official budget announcement on Wednesday.
The British head of state, dressed in a blue suit and a light tie, was photographed shaking hands with Hunt as he welcomed him at Buckingham Palace in central London.
Kate was on Monday spotted in public for the first time since she underwent abdominal surgery in mid-January, according to photos published by US outlet TMZ.
