Toby Buchan, 4th Baron Tweedsmuir British peer (b. 1950) Parents William Buchan, 3rd Baron Tweedsmuir Barbara Howard Ensor Children John Alasdair Gawain Buchan Christopher Charles Westray Buchan Siblings Ursula Margaret Bridget Buchan Deborah Charlotte Buchan Alexander Edward Buchan Laura Mary Clare Buchan Perdita Buchan James Buchan Charles Buchan Partners Amanda Jocelyn Bell