Mary Hill, Countess of Hillsborough (died 29 July 1780) was a British

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 peeress

Peerage

The Peerage is a legal system of largely hereditary titles in the United Kingdom, which constitute the ranks of British nobility and is part of the British honours system...

, a daughter of the Edward Stawell, 4th Baron Stawell

Baron Stawell

Baron Stawell was a title that was created twice in British history. The first creation came in the Peerage of England in 1683 when Colonel Ralph Stawell was made Baron Stawell, of Somerton in the County of Somerset. The title became extinct on the death of the fourth Baron in 1755...

.

On 11 September 1750, she married Henry Bilson-Legge (a son of the 1st Earl of Dartmouth

William Legge, 1st Earl of Dartmouth

William Legge, 1st Earl of Dartmouth , only son of George Legge, 1st Baron Dartmouth, succeeded to his father's barony in 1691. In 1702 he was appointed a member of the Board of Trade and Plantations, and eight years later he became Secretary of State for the Southern Department and joint keeper of...

) and they later had a son, Henry Bilson-Legge, 2nd Baron Stawell (1757–1820). Upon the death of her father in 1755, she inherited her father's estate but not his title, but was later created Baroness Stawell, of Somerton in the County of Somerset

Somerset

The ceremonial and non-metropolitan county of Somerset in South West England borders Bristol and Gloucestershire to the north, Wiltshire to the east, Dorset to the south-east, and Devon to the south-west. It is partly bounded to the north and west by the Bristol Channel and the estuary of the...

, in 1760, in her own right.

Her husband died in 1764 and in 1768 she married the 1st Earl of Hillsborough

Wills Hill, 1st Marquess of Downshire

Wills Hill, 1st Marquess of Downshire PC , known as the Viscount Hillsborough from 1742 to 1751 and as the Earl of Hillsborough from 1751 to 1789, was a British politician of the Georgian era...

 and became Countess of Hillsborough. Her second husband was created Marquess of Downshire

Marquess of Downshire

Marquess of Downshire is a title in the Peerage of Ireland. It was created in 1789 for Wills Hill, 1st Earl of Hillsborough, a former Secretary of State....

after her death.