A Genealogical History of the Dormant, Abeyant, Forfeited, and Extinct Peerages of the British Empire @ pp. 23, 126
The cited information was published by London: Burke's Peerage, Ltd., 1883. Reprinted Baltimore: Genealogical Publishing Co., 1996 (Ref: pp. 23, 126) The author/originator was Bernard Burke.