Arthur Hill, 2nd Marquess of Downshire PC, FRS, styled Viscount Fairford until 1789 and Earl of Hillsborough from 1789 to 1793, was a British peer and MP.

Wills Hill, 1st Marquess of Downshire,, known as the 2nd Viscount Hillsborough from 1742 to 1751 and as the 1st Earl of Hillsborough from 1751 to 1789, was a British politician of the Georgian era.