a borough town of Berkshire, 22 miles west of London, most remarkable for the magnificent royal palace or castle situated there on an eminence, which commands the adjacent country for many miles, the river Thames running at the foot of the hill. The knights of the Garter are installed in the royal chapel here. It sends two members to parliament. The number of inhabitants in 1801 was 3361. W. Long. c. 36. N. Lat. 51. 30.