Buckingham Palace forms the architectural core of the palace was built for the first Duke of Buckingham and Normanby in 1703 to the design of William Winde. The style chosen was of a large, three-floored central block with two smaller flanking service wings. Buckingham House was eventually sold by Buckingham's natural son, Sir Charles Sheffield, in 1761 to George III for £21,000. Sheffield's leasehold on the mulberry garden site, the freehold of which was still owned by the royal family, was due to expire in 1774. Under the new Crown ownership, the building was originally intended as a private retreat for King
John Nash (architect) 11 July 1835 for £1,061. His books, medals, drawings and engravings were bought by a bookseller named Evans for £1,423 on 15 July. The Castle itself was sold for a reported figure of £20,000 to Henry Boyle, 3rd Earl of Shannon within the year. Nash's widow retired to a property Nash had bequeathed to her in Hampstead where she lived until her death in 1851; she was buried with her husband on the Isle of Wight. Nash had many pupils and assistants including Decimus Burton, Humphry Repton's sons, John Adey Repton and George Stanley Repton, as well as Anthony Salvin,