Marble Hill House was built in 1724–1729 by Henrietta Howard, Countess of Suffolk, the mistress of King George II, to the designs of the architect Roger Morris (1695–1749) in collaboration with Henry Herbert, 9th Earl of Pembroke, one of the “architect earls”. Pembroke, then Lord Herbert, based the design of Marble Hill to a large degree on Andrea Palladio’s 1553 Villa Cornaro in Piombino Dese, Italy, and thus incorporated a cubic saloon on the first floor or piano nobile. Villa Cornaro also served as a model for plantation houses in the American colonies, examples being Drayton Hall (1738–1742) in Charleston, South Carolina, and Thomas Jefferson’s initial version of Monticello (1768–1770). It was in other respects an adaptation of a more expansive design by Colen Campbell. It is set in 66 acres (2.67 km²) of parkland known as Marble Hill Park. The Great Room contains lavishly gilded decoration and five capricci paintings by Giovanni Paolo Pannini. Marble Hill House also contains a loaned collection of early Georgian furniture and paintings as well as the Chinoiserie collection of the Lazenby Bequest.