The site was long familiar to the artist, and he had drawn there as early as 1792 (Tate D00118–D00120; Turner Bequest VIII D, E, F). There are numerous detailed drawings in other books used in 1805 or a little later; see for example the watercolour view across the river and through trees in the Studies for Pictures: Isleworth sketchbook (Tate D05532; Turner Bequest XC 29a), related to the contemporary painting Windsor Castle from the Thames (Tate T03870; displayed at Petworth House, West Sussex).1
Martin Butlin and Evelyn Joll, The Paintings of J.M.W. Turner, revised ed., New Haven and London 1984, p.113 no.149, pl.156 (colour)
Blank. There is slight offsetting from the ink drawing on folio 6 recto opposite (D03807).