Wentworth Woodhouse is a Grade I listed country house in the village of Wentworth, in the Metropolitan Borough of Rotherham in South Yorkshire, England. It is currently owned by the Wentworth Woodhouse Preservation Trust. The building has more than 300 rooms, although the precise number is unclear, with of floorspace, including of living area. It covers an area of more than , and is surrounded by a park, and an estate of .
The original Jacobean house was rebuilt by Thomas Watson-Wentworth, 1st Marquess of Rockingham (1693–1750), and vastly expanded by his son, the 2nd Marquess, who was twice Prime Minister, and who established Wentworth Woodhouse as a Whig centre of influence. In the 18th century, the house was inherited by the Earls Fitzwilliam and the family of the last earl owned it until 1989. It now belongs to the Wentworth Woodhouse Preservation Trust and is undergoing restoration.
The English Baroque, brick-built, western range of Wentworth Woodhouse