Dormant, Abeyant, Forfeited, and Extinct Peerages @ p. 33, Beauchamp, Baron Beauchamp, of Beltsho
The cited information was published by Burke's Peerage, Ltd., London, England, 1883, held in
{R500171277} (Ref: p. 33, Beauchamp, Baron Beauchamp, of Beltsho) The author/originator was Sir Bernard Burke.