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.