Dictionary of National Biography, 1885-1900/Dundas, Robert (d.1726)
DUNDAS, ROBERT, second Lord Arniston (d. 1726), ordinary lord of session, eldest son of Sir James Dundas, lord Arniston [q. v.], by Marion, daughter of Robert, lord Boyd, was educated abroad, but returned to Scotland as an adherent of the Prince of Orange, and represented Midlothian in the parliaments of 1700–2 and 1702–7. He was appointed an ordinary lord of session on 1 Nov. 1689, assuming the title of Lord Arniston, and sat on the bench for thirty years. He was fond of retirement and study. Guarini's ‘Pastor Fido’ was among his favourite books. By his wife Margaret, daughter of Sir Robert Sinclair of Stevenson, he had six sons, of whom the second, Robert the elder [q. v.], became lord president of the court of session, and four daughters. Dundas died on 25 Nov. 1726.
[Collins's Peerage, ed. Brydges, vi. 407; Brunton and Haig's Senators of the College of Justice; Douglas's Baronage, p. 187; Omond's Arniston Memoirs.]