Princess Beatrice and Princess Eugenie have the chance to show “loyalty to King Charles”, a PR expert has claimed. The York sisters have not confirmed whether or not they will attend Trooping the Colour this weekend, a parade to celebrate the monarch’s birthday. The princesses would always attend the parade growing up, and even as young adults up to the year 2019. However, ever since their father, Prince Andrew, stepped down as a working royal five years ago, the sisters have not appeared on the Buckingham Palace balcony. During Queen Elizabeth II’s Platinum Jubilee, the late monarch decided t…