Deborah Charlotte Buchan (born 1947) (b. 1947) Parents William Buchan, 3rd Baron Tweedsmuir Barbara Howard Ensor Children Lydia Barbara Rose Stewart Dorothy Louisa Charlotte Amabel Stewart Henry Ernest Alexander Halley Stewart Siblings Ursula Margaret Bridget Buchan Alexander Edward Buchan Laura Mary Clare Buchan Toby Buchan, 4th Baron Tweedsmuir Perdita Buchan James Buchan Charles Buchan Partners Ian Stewart, Baron Stewartby