Petworth House in the parish of Petworth, West Sussex, England, is a late 17th-century Grade I listed country house, rebuilt in 1688 by Charles Seymour, 6th Duke of Somerset, and altered in the 1870s to the design of the architect Anthony Salvin. It contains intricate wood-carvings by Grinling Gibbons (d.1721). It is the manor house of the manor of Petworth. For centuries it was the southern home for the Percy family, Earls of Northumberland.