'Who Do You Think You Are?' Finale

The final episode of the latest BBC1 Who Do You Think You Are? series will be aired tomorrow at 9pm, featuring Frances de la Tour. Laura Berry appears on screen with the actress, helping her to find out more about her ancestor Lady Maria Gardner, and sending her off on a trail leading to a secret lover, an illegitimate child and a scandalous divorce case. Laura was one of the principal genealogists for series 12, which has featured Bake Off's Paul Hollywood, Bond girl Jane Seymour, model Jerry Hall, actors Anne Reid, Derek Jacobi and Mark Gatiss, choirmaster Gareth Malone, journalist Frank Gardner and presenter Anita Rani. The series is available on i-Player until mid-November 2015.