Seat
[http://www.nga.gov/content/ngaweb/research/casva/research-projects.html A Project of the National Gallery of Art, Center for Advanced Study in the Visual Arts ]
In the discourse of landscape design, seat possessed two distinct yet equally prevalent meanings, as indicated by Thomas Sheridan’s 1789 dictionary entry. One sense referred to seat as a large estate, usually marked by a country house or mansion, for example, William Hamilton’s Woodlands, near Philadelphia; or Gen. Charles Ridgely’s Hampton, in Baltimore County, Md. A seat was also a garden structure for sitting.