Mary Margesson (1919-2017) (1919–2017) Parents Frances Howard Leggett David Margesson, 1st Viscount Margesson Children Harold Francis Charteris Francesca Pearson, Baron Pearson of Rannoch Andrew Charteris Siblings Janet Hampden Margesson Francis Margesson, 2nd Viscount Margesson Partners Martin Charteris, Baron Charteris of Amisfield