References for Charles Churchill
Sir B.Burke: A Genealogical History of the Peerages and Knightages of the British Empire. London, 1953
J.Siebmacher: J.Siebmachers grosses Wappenbuch, Band 3-A, Die Wappen des hohen deutschen Adels. Neustadt a.d.Aisch, Bauer & Raspe, 1972/4