General Notes

Constance m. 1st Geoffrey Plantagenet, 4th son of King Henry II, and had issue, Arthur, said to be put to death by his uncle, John, afterwards King John; and Eleanor, d. s. p. Constance m. 2ndly, Ralph de Blondville, Earl of Chester, but from she was soon afterwards divorced, and she m. 3rdly, Guy, Viscount of Thouars, by whom she had two daus., viz., Alice, m. to Peter de Dreux, and Katherine, m. to Andrew de Vitre. [Sir Bernard Burke, Dormant, Abeyant, Forfeited, and Extinct Peerages, Burke's Peerage, Ltd., London, 1883, p. 162, de Dreux, Earls of Richmond]