Farington Diary, vol. 4, p. 1553 (24 May 1801); Booth Notes, Doc. 5, p. 1; Catalogue 1814, p. 22; probably Waagen 1854, vol. 3, p. 17, Letter XXIII, Panshanger: 'A sunrise in a romantic country, with a rock crowned by a castle. This poetically composed and carefully painted picture has become very dark; so that, as often happens with pictures of the English school, it does not answer the expectations which are raised by the fine engraving'; WGC, p. 163, pl. 22b; Hayes 1966, p. 195, p. 197, fig. 10 & n. 57; London, Cardiff and New Haven 1982-83, under no. 131; Clayton 1997, pp. 198-99; Wilson and Europe 2014, p. 130, fig.107; P. Humfrey, 'The 3rd Duke of Bridgewater as a Collector of Old Master Paintings', Journal of the History of Collections, vol. 27, no. 2, 2015, pp. 214, 224, n. 28