The engagement was announced 15 Apr, 2006, between Andrew Stewart, son of Mr and Mrs Gordon Stewart, of Bridge of Allan, Stirlingshire, and Katherine Ann Bruce (b. 1980), scion of the Earls of Elgin & Kincardine, daughter of the Hon. James Michael Edward Bruce, CBE (b. 1927), of Dron, Perthshire, by his 2nd wife the late Morven-Anne Macdonald.
Katherine Bruce is a granddaughter of the 10th Earl of Elgin & Kincardine, KT, CMG, TD (1881-1968), by his wife the former Hon. Katherine Cochrane (d. 1989), daughter of the 1st Baron Cochrane of Cults.
Source: The Times 15 Apr, 2006