Belvedere: Hilary Weston's 60th birthday party at the fort was attended by Queen Elizabeth and Prince Philip, Queen Noor of Jordan and Princess Caroline of Monaco, and a June 2014 ball at the fort was enthusiastically covered in The Spectator'' magazine by Taki Theodoracopulos. The Crown Estate retains ownership of the freehold, as the property is still part of the Great Park. Gardens The grounds of Fort Belvedere are about a hundred acres in size and include forests and a lake. The gardens of Fort Belvedere, Virginia Water and the nearby Clockcase are Grade I listed on the Register of Historic Parks and Gardens. Edward said of the fort that "By the time I came upon it, it had become a pseudo-Gothic hodge-podge. A profusion of yew trees kept one side of the house in perpetual shadow, staining the wall with green acidulous mould. But the half-buried beauty of the place leaped to my eye." Edward's subsequent passion for landscaping and horticulture briefly eclipsed golf and hunting in his affections, and he would often get his weekend guests, including his brother Bertie, the future George VI, to assist him in the landscaping of the fort. The garden designer Norah Lindsay also worked on the fort's garden at the behest of Edward, he would later describe how her "unusual use of roses in the herbaceous border" had justified her payment. Edward planted roses and irises along the walls of the battlement. Prime Minister Baldwin complimented Edward on the beauty of the garden; commenting on the "silvery radiance of the birch trees and the delicacy of the autumn tints" in late 1936. Edward also mowed hay on the fort's estate in the summer months and built a rock garden with cascading water pumped from Virginia Water. The Westons have carried out substantial landscaping at the fort, and recruited Rosemary Verey to help with the design of the gardens at Fort Belvedere in the early 1980s. Verey's designs for the rose garden and the 120 ft long borders along the battlement remain, and have been reworked and maintained by garden designer Tom Stuart-Smith. Cannon Thirty-one brass cannon were moved to the north-facing crenellated terrace of the fort from nearby Cumberland Lodge in the early 19th century. The cannon were made by Andrew Schalch at the Royal Brass Foundry in Woolwich in 1729–1749. The cannon were fired for George IV's birthdays and other royal