conventionDeclarationdetailLevelhttp://ica-atom.org/doc/RS-2#5.4familyMansell family, Barons of MargamconventionDeclarationPenrice and Margam Estate Records,Achau, barddoniaeth, etc.The Mansel family,A history of the Mansel family,Pedigrees,Pedigrees,Margam Abbey and the Mansel family, &c.,Transcript relating to the Mansel family