Jane Shore was a mistress of King Edward IV. After his death in 1483 she was accused of being a harlot and condemned to do public penance in St Paul’s Cathedral. The ‘golden glow’ of this watercolour comes from a very thick, now-yellowed glue layer that was almost certainly applied as a varnish by Blake. He varnished his temperas in a similar way. Once it had yellowed someone else added a picture varnish on top. This also went yellow but has since been removed. The subtle colouring of Blake’s painting is suppressed by the glue varnish.