Stock Photo - Aug. 08, 1959 - Home of Sovereigns: For over 850 years Windsor Castle has been the chief residence of English sovereigns. Begun by William the Conqueror in the 11th century, its broad outlines date mainly from the 14th century. Extensive restorations was undertaken in the 19th century. In the absence of Queen Elizabeth, the State Apartments are open to the public in the summer. The other parts of the castle are open daily. Photo shows An aerial view of Windsor Castle on its cliff above the Berkshire town of Windsor (houses of which are in the immediate foreground). Immediately behind the walls is (center) the Gothic St. George's Chapel, began in the 15th century and finished in the 16th. The State Apartments surround the 14th century Round Tower (center background) (Credit Image: © Keystone Press Agency/Keystone USA via ZUMAPRESS.com)