Since completing part #6 of the SublimeSites.co series on Turner and Heidelberg, I have discovered a potential literary source for the subject of the Tate oil painting.
In part #6, I suggested that the composition of the painting was based on a sketch in the ‘Mountain Fortress’ sketchbook in the Turner Bequest at the Tate (TB CCCXXXIX). I am still puzzling over what the subject of the sketches might be – there are several of the same castle(s) in that sketchbook – but I did notice that the sketchbook contains the draft of a passage of poetry that clearly contains the germ of the composition.
I have transcribed the passage and incorporated that into an updated version of Part #6.
Supported by the Pilkington Anglo-Japanese Cultural Foundation