Euphemia Cochrane (1693-1721) (1693–1721) Parents Lady Mary Bruce William Cochrane, 7th Earl of Dundonald Children Mary Erskine Mary Erskine Euphemia Erskine Siblings Thomas Cochrane, 8th Earl of Dundonald Anne Cochrane James Cochrane Charles Cochrane William Cochrane of Ochiltree, Younger Partners John Erskine