Why didn’t Pippa Middleton attend her sister Kate’s Together at Christmas carol concert?

The Duchess of Edinburgh, Mike and Zara Tindall, Lord and Lady Frederick Windsor and Prince Michael of Kent were among the royals who turned out for the annual festive event, which is now in its fifth year. They were joined by the likes of Hannah Waddingham, Dan Smith and Chiwetel Ejiofor, who showed their support for Kate alongside other celebrities and community leaders.

This year’s concert, which will be broadcast as part of a special Christmas Eve programme on ITV1 and ITVX, was…