The daughter of Sir Hedworth Williamson, sixth baronet; in 1823 she married Thomas Dundas, afterwards second earl of Zetland.

REFERENCES TO Sophia Jane Dundas, countess of Zetland [née Williamson]:

Thomas Creevey to Elizabeth Ord, 20 October 1824 in The Creevey Papers: A Selection from the Correspondence & Diaries of the late Thomas Creevey, M.P. (London: John Murray, 1903)