John Dewar, 4th Baron Forteviot British peer (born 1938) (b. 1938) Parents Henry Dewar, 3rd Baron Forteviot Cynthia Monica Starkie Children Henrietta Dewar Mary Dewar Alexander Dewar Miranda Dewar Siblings Simon Thomas Dewar Caroline Worsley, Lady Worsley Penelope Cynthia Dewar Partners Lady Elizabeth Waldegrave