This painting is based on the ballad 'The Boy and the Mantle', from Thomas Percy's 'Reliques of Ancient English Poetry', published in 1765. 'The Boy and the Mantle' is part of the Arthurian legend, and this story has parallels with the Welsh Caradog Freichfras. (http://elhurgador.blogspot.nl/search/label/painting?updated-max=2017-08-10T03:11:00%2B01:00&max-results=20&start=21&by-date=false)