Royal Family At Balmoral Queen Elizabeth, the Duke of Edinburgh, and the children, Prince Charles and Princess Anne, exercise the ponies in the grounds of Balimoral Castle during the Royal Family's summer holiday, August 1955 Prince Charles holds "William" and Princess Anne holds "Greensleeves." Balmoral Castle, the private property of the sovereign, on deside in West Aberdeenshire, Scotland, was Queen Victoria's favourite residence. Prince Albert bought the 11,000-Acre estate in 1852 for £ 31,500 and the Castle was rebuilt three years later. September 26, 1955. (Photo by James Reid, Associated Press Photo).