On 15 March 1736, at the age of 13, Elizabeth married Stephen Fox, the 31-year-old future earl.
[3] He was raised to the peerage in 1741 and was created an earl on 17 June 1756, making his wife a countess.
In 1758, the earl took the additional surname and arms of Strangways in compliance with the terms of his wife's inheritance.
[5] Those who survived to adulthood were: In the mid-1760s, Elizabeth arranged the construction of a seaside villa with landscaped gardens, near Chesil Beach in Dorset, in imitation of Horace Walpole's Strawberry Hill House; it was called "Strangways", later known as "Abbotsbury Castle".
[5] Elizabeth is supposedly the real person behind the "first Countess of Wessex" in Thomas Hardy's short story of that name, published in 1891.