The New Royals' author, Katie Nicholl, details why Queen Elizabeth's four children and eight grandchildren stand vigil over her coffin.
On Friday, King Charles, Princess Anne, Prince Andrew and Prince Edward participated in this tradition.
On Saturday, the same will be done by her grandchildren: Prince William, Prince Harry, Princess Beatrice, Princess Eugenie, Peter Phillips, Zara Tindall, Lady Louise Windsor, James Mountbatten-Windsor and Viscount Severn
