George Lyttelton [Baron Lyttelton] (1769). The History of the Life of King Henry the Second: And of the Age in which He Lived. Volume 2 J. Dodsley. pp. 309–10.
George Oliver (1829). The History and Antiquities of the Town and Minster of Beverley in the County of York ... and sold by M Turner. pp. 385–6. and p. 84-
George Poulson (1829). Beverlac; or, The antiquities and history of ... Beverley ... and of the provostry and collegiate establishment of St. John's. pp. 536–.
Wikimapia Beverley Minster