- [S189] #243 [2nd ed. 1844, reprint 1977] A Genealogical and Heraldic History of the Extinct and Dormant Baronetcies of England, Ireland, and Scotland (second edition, 1841, reprint 1977), Burke, John and John Bernard Burke, (Second edition, 1844.
London: John Russell Smith, 4, Old Compton Street, Soho Square
Reprint, Baltimore: Genealogical Publishing, 1977), FHL book 942 D22bu 1977; FHL microfilm 994,038 ite., p. 132.
"Robert, of Caus Castle, whose descendant was summoned to parliament as a baron by Edward I."
- [S64] #248 [Reprint, 1977] A Genealogical and Heraldic History of the Commoners of Great Britain and Ireland Enjoying Territorial Possessions or High Official Rank but Uninvested with Heritable Honours (1834-1838; reprint 1977), Burke, John, (1834-1838. Reprint, Baltimore: Genealogical Publishing, 1977), 942 D2bc 1977; FHL microfiche 6035997-035999; FHL ., vol. 3 p. 189.
"Robert (Sir), of Caus, knt. whose younger son, Richard, accompanied King Richard I. to the siege of Acon. The eldest son, Sir Robert Corbet, was lord of Caus, in the 22nd Henry II. and was ancestor of the Barons Corbet, of Caus, now extinct, and of the Corbets, formerly of Leigh, but now of Sundorne Castle, near Shrewsbury."
- [S311] #783 Transactions of the Shropshire Archaeological and Naturalhistory Society (1878-1921), Shropshire Archaeological and Natural History Society, (Shrewsbury [England]: Adnitt and Nauton, 1878-1921), FHL book 942.45 C4a., Ser. 1 vol. 4 p. 81, vol. 7 p. 324.
- [S103] #1843 The Visitation of Shropshire, Taken in the Year 1623 (1889), Treswell, Robert (main author), (Publications of the Harleian Society: Visitations, volumes 28, 29. London: [Harleian Society], 1889), FHL book 942 B4h volumes 28-29; FHL microfilm 162,., vol. 28 p. 139.