 The Gallery ’ s lack of space remained acute in this period . In 1845 a large bequest of British paintings was made by Robert Vernon ; there was insufficient room in the Wilkins building so these were displayed first in Vernon ’ s town house at No. 50 Pall Mall and then at Marlborough House . The Gallery was even less well equipped for its next major bequest , as J. M. W. Turner was to bequeath the entire contents of his studio , excepting unfinished works , to the nation upon his death in 1851 . The first 20 of these were displayed off @-@ site in Marlborough House in 1856 . The stipulation in Turner 's will that two of his paintings be displayed alongside works by Claude is still honoured in Room 15 of the Gallery , but his bequest has never been adequately displayed in its entirety ; today the works are divided between Trafalgar Square and the Clore Gallery , a small purpose @-@ built extension to the Tate completed in 1985 . 
