This 16th-century house was remodelled by John Cooper of Beaumaris in 1783-6 and between the 1790s and 1820s by James Wyatt and his assistant, Joseph Potter of Lichfield. Their client was Henry, Earl of Uxbridge; his son Henry, who lost a leg at Waterloo, was created 1st Marquess of Anglesey. Architecturally, Plas Newydd belongs to the early 19th century and the ‘cult of styles’, cheerfully mixing Neo-classical and picturesque Gothick. Still, it is very much rooted in the 1930s, when the 6th Marquess of Anglesey refurbished the house and employed Rex Whistler to create an immense Italianate dining room mural. Aside from the mural, the interior is mainly Neo-classical with very good examples of late 18th-century Gothick work in the hall and music room. Outside, the sinuous shape of the landscape, framed by drifts of trees and shrubs, was set out by the leading designer of the period, Humphry Repton.