In 1843 it was called a penitentiary instead of a prison. Gradually, as new methods of prison architecture were evolved, Millbank was recognised as cumbersome and inadequate. It was doomed for many years before its demolition, and now, like the prison of Tothill Fields, has vanished. Even the convicts' burial-ground at the back of the Tate Gallery is nearly covered with County Council industrial dwellings. Further northward in the Grosvenor Road, Peterborough House once stood, facing the river, and this was at one time called "the last house in Westminster." It was built by the first Earl of Peterborough, and retained his name until 1735, when it passed to Alexander Davis of Ebury, whose only daughter and heiress had married Sir Thomas Grosvenor. It was by this marriage that the great London property came into the possession of the Grosvenor (Westminster) family. The house was rebuilt, and renamed Grosvenor House. Strype says: "The Earl of Peterborough's house with a large courtyard before it, and a fine garden behind, but its situation is but bleak in winter and not over healthful, as being too near the low meadows on the south and west parts." The house was finally demolished in 1809. Beyond, in the direction of the Houses of Parliament, there are several interesting old houses, of which the best specimens are Nos. 8 and 9, offices of the London Road Car Company, and No. 10. In the first a well-furnished ceiling proclaims an ancient drawing-room; in the second panelled walls and a spiral staircase set off a fine hall. This house has a beautiful doorway of the old scallop-shell pattern, with cherubs' heads and ornamental brackets decorating it. In the third house a ceiling is handsomely finished with dental mouldings, and the edges of the panels are all carved. A mantelpiece of white marble is very fine, and of great height and solidity, with a female face as the keystone.