
When it comes to the Princess of Wales's close bond with her sister, Pippa, it's their humour over royal protocol, open chats and Pippa's marriage to 'wealthy' James Matthews that has kept things 'balanced' over the years, a royal expert says.
Flashback to April 2011 and Pippa Middleton was one of the most talked about people at Kate Middleton and Prince William's wedding, with the big day thrusting her into the royal spotlight as her sister married into The Firm.