Princess Anne is set to hold a historic garden party at Buckingham Palace. The Not Forgotten Association Garden Party has been held at Buckingham Palace since 1921. Last year, the Duchess of Edinburgh hosted the special event, which is the only annual Garden Party at the palace besides the monarch’s. The Not Forgotten Association is a charity that provides entertainment, leisure and recreation for ex-servicemen and women with disabilities or who are injured or sick. The last time the Princess Royal hosted the event was in 2022, with her husband Sir Timothy Lawrence. The Royal Family has been c…