After the death of his father, his mother married David Lindsay, 12th Earl of Crawford.
His maternal grandparents were Mark Kerr, 1st Earl of Lothian, and Margaret Maxwell (a daughter of John Maxwell, Lord Herries).
[nb 2] Margaret was living as his wife as of 4 March 1616, but died s.p., in 1616.
Lady Christian was the eldest daughter of Thomas Hamilton, 1st Earl of Haddington and Margaret Borthwick (a daughter of James Borthwick, of Newbyres).
His widow, an ardent Presbyterian, born between 1588 and 1594, died "very comfortably" at the house of her daughter Lady Scott, of Ardross, in the parish of Elie, shortly before 22 January 1646 and was buried on 6 February.