Princess Anne, sister of King Charles III, is still facing health challenges after an accident that resulted in "minor injuries and a concussion." A royal source told NBC News that Anne is unable to remember all the details of the incident due to her injury. Buckingham Palace announced on June 24 that the 73-year-old Anne was taken to the hospital in Bristol "as a precaution for monitoring" after the accident that occurred at her country home. The palace noted that "Anne is expected to make a full and swift recovery," adding: "The King has been closely informed of the latest developments and has joined all members of the royal family in sending their heartfelt love and best wishes for a speedy recovery to the Princess." Although Anne has not shared details about the accident, her doctors indicated that her injuries were due to a horse, according to the BBC. The Princess withdrew from an official dinner with Japanese officials on June 25 and cancelled her trip to Canada that was scheduled for later that week.