[1] The garden at the centre of the square was the site of the annual summer party held by the broadcaster David Frost.
[6] The composer William Walton lived for many years with the Sitwells at Carlyle Square.
[9] 21 was the home of Victor Cavendish-Bentinck, 9th Duke of Portland, who served as Chairman of the Joint Intelligence Committee during World War II.
[11] It was subsequently the home of writer Edna O'Brien, and the broadcaster David Frost and his family later lived at No.
[14] The Irish nationalist MP William Stacpoole died at his Carlyle Square residence, Cupola House, in 1879.