live from buckingham palace, this is bbc news. welcome this is bbc news. to a rather rainy and chilly day welcome to a rather rainy and chilly day here, but it is a significant day. in the next hour, the princess of wales will make her first public appearance since she was diagnosed with cancer, and that is at today s trooping the colour, the military parade which celebrate the king s fund birthday. the princess will be in the carriage parade with her children for the king s birthday celebrations, beforejoining the rest of the family on the baclony at buckingham palace. a new photo of the princess from the palace. taken close to her home in windsor, a place where she has been able to rest, recuperate, and spend time with her family. it marks the first significant announcement about catherine s health since she announced her cancer diagnosis in march. my work has always brought me a deep sense ofjoy and i look forward to being back when i m able. but for now i must focus on m