As part of unpublished Turner research informed by local knowledge, Dr Bernard Richards has identified the ruins as Dudley Priory;1 the keep of Dudley Castle stands above to the east-south-east. The Dudley College complex now stands between the two, although the scene is still recognisable.
There are two variant views, across the top of the page and at the bottom left, separated by pencil lines, and another on folio 23 verso opposite (D22017), which is continued here a little at the centre left. At the bottom right is the spire of St Thomas’s Church in the distance to the south, flanked by chimneys; the church can still be glimpsed through trees from the south-west side of Priory Park. For other views of Dudley see under folio 23 recto (D22016).
Finberg was incorrect in his suggestion that the subject was Ashby-de-la-Zouch Castle, for which see under folio 21 verso (D22012; Turner Bequest CCXXXVIII 21).
Conversation with the author, 14 May 2013.