Burke, Sir John Bernard, Genealogical and Heraldic History of the Peerage Baronetage and Knightage. 99th edition. London: Burke's Peerage, 1949. Available at http://archive.org/details/burkesgenealogic1949unse. Information from this source tagged as [Ref: Burke Peerage [cx0-9]*].
Sources for birth and parent Information
date:
second son [Ref: Burke Peerage p800],
parents:
[Ref: Burke Peerage p800]
Research Notes:
1234: made Constable of Caermarthen Castle by Henry III [Ref: Burke Peerage
p800]
received several grants of land in S Wales and co Gloucester [Ref: Burke
Peerage p800]