Flemings Mayfair on Half Moon Street was opened in 1851 by Robert Fleming, who worked for Henry Paget, 2nd Marquess of Anglesey. It is the second oldest independent hotel in London. The London Marriott Hotel Grosvenor Square on the corner of Grosvenor Square and Duke Street was the first Marriott Hotel in Britain. It opened as the Europa Hotel in 1961 and was bought by Marriott in 1985. It was a popular place for visitors to the American Embassy. The Grosvenor House Hotel on Park Lane is on the former site of Grosvenor House, the home of Robert Grosvenor, 2nd Earl Grosvenor (later Robert Grosvenor, 1st Marquess of Westminster). It was built by Arthur Octavius Edwards in the 1920s and has over 450 bedrooms, with 150 luxury flats in the south wing. It was the first London hotel to have a swimming pool. The Dorchester is named after Joseph Damer, 1st Earl of Dorchester. The first building here was erected by Joseph Damer in 1751, and renamed Dorchester House following the Earl's succession in 1792. The property was purchased by Sir Robert McAlpine and Sons and Gordon Hotels Ltd in 1928 to be converted into a hotel, which opened on 18 April 1931. It was General Dwight Eisenhower's London headquarters in World War II. The Duke of Edinburgh held his stag night at the hotel prior to his marriage to Princess Elizabeth. The May Fair Hotel opened in 1927 on the site of Devonshire House in Stratton Street. It also accommodates the May Fair Theatre, which opened in 1963. The Ritz opened on Piccadilly on 24 May 1906. It was the first steel-framed building to be constructed in London, and it is one of the most prestigious and best-known hotels in the world. Mayfair has had a range of exclusive shops, hotels, restaurants and clubs since the 19th century. The quarter—especially the Bond Street area—is also the home of numerous commercial art galleries and international auction houses such as Bonhams, Christie's and Sotheby's. Gunter's Tea Shop was established in 1757 at Nos. 7–8 Berkeley Square by the Italian Domenico Negri. Robert Gunter took co-ownership of the shop in 1777, and full ownership in 1799. During the 19th century it became a fashionable place to buy cakes and ice cream, and was well known for its range of multi-tiered wedding cakes.