Sir Lancelot Douglas Carnegie MVO GCVO KCMG (Edinburgh, 26 December 1861 – London, 15 October 1933),[1] was a British diplomat.
He was the second son of the 9th Earl of Southesk, and the eldest son by his second marriage (1860) to Lady Susan Murray (died 1915), eldest daughter of Alexander Murray, 6th Earl of Dunmore.
Lancelot Carnegie attended Eton College and Oxford University.
He passed through the diplomatic offices of Madrid, Petrograd, Beijing, Vienna and Paris before his last and longest assignment, in Lisbon.
According to their granddaughter Lady John Kerr, Marion lost her hearing at the age of 30, but this did not stop her leading a full life.