Sir Ralph Lingen's wife Margery was not a Pembrugge [as originally published], but was a daughter of Roger de Cheyne. (See Col. Charles M. Hansen, USA (ret.), "The Genealogist" 7-8: 65-68, 121-122). [Magna Charta Sureties]
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This is a Shropshire family . . Yes Margery was daughter of Roger and granddaughter of Roger. Her mother is Isolde. This is from a lawsuit pedigree in Gen. Wrottesley's "Pedigrees from the Plea Rolls". More on the family should be found in Rev. Eyton's Antiquities . . . Shropshire, which is on film from the LDS FHC system. [Kay Allen, AG; soc.genealogy.medieval]