Dear Scott ~
The fine below indicates that John Lingen and his wife, Margaret Englefield, were married on or about 25 November 1507/20 January 1508. As such, they appear to have been contemporaries of Robert Blake (died 1515), of Calne, Wiltshire, and his wife, Margaret Englefield.
Given what you have posted regarding the two couples, it seems likely to me that the two Margaret Englefield's were separate and distinct people. This does not, however, preclude them from being sisters, even full siblings.
For your information, I might add that the Englefield family of Berkshire traces their descent from Sir Alan de Englefield (or Englefeld, Engelfeld), Knt., living 1226, of Englefield and Sheffield (in Burghfield), Berkshire, Edgcott, Buckinghamshire, Cranford, Middlesex, Himley, Staffordshire, etc., Justice in Berkshire, and his wife, Isabel, daughter of Roger de Somery, Knt., of Dudley (in Sedgley), Staffordshire.
Isabel de Somery's mother, Margaret (or Margery) le Gras, was the niece of Sir William Marshal, Earl of Pembroke.
Best always, Douglas Richardson, Salt Lake City, Utah
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Source:
http://www.medievalgenealogy.org.uk/fines/abstracts/CP_25_1_83_58.shtml#26
CP 25/1/83/58, number 26.
Link: Image of document at AALT
County: Herefordshire.
Place: Westminster.
Date: Two weeks from St Martin, 23 Henry VII [25 November 1507]. And afterwards one week from St Hilary in the same year [20 January 1508].
Parties: Thomas Leyghton', knight, John Danuers, knight, Robert White, esquire, William Rudhale, Henry Lauain, esquire, Richard Vaughan', esquire, Thomas Englefeld', esquire, Thomas Bodenham, Richard Tyler, clerk, and Thomas Latham, clerk, querents, and John Lyngan', knight, and Eleanor, his wife, deforciants.
Property: The manor of Weston', and 12 messuages, 1 mill, 1 dove-cot, 12 gardens, 600 acres of land, 50 acres of meadow, 300 acres of pasture, 200 acres of wood and 4 pounds of rent in Weston'.
Action: Plea of covenant.
Agreement: John and Eleanor have acknowledged the manor and tenements to be the right of Richard Tyler, as those which the same Richard, Thomas, John Danuers, Robert, William, Henry, Richard, Thomas, Thomas, Richard and Thomas have of their gift, and have remised and quitclaimed them from themselves and the heirs of Eleanor to Thomas, John Danuers, Robert, William, Henry, Richard, Thomas, Thomas, Richard and Thomas and the heirs of Richard Tyler for ever.
Warranty: Warranty.
For this: Thomas, John Danuers, Robert, William, Henry, Richard, Thomas, Thomas, Richard and Thomas have granted to John Lyngan' and Eleanor the manor and tenements and have rendered them to them in the court, to hold to John and Eleanor for their lives, without impeachment of waste, of the chief lords. After the decease of John Lyngan' and Eleanor, the manor and tenements shall remain to John Lyngan', esquire, and Margaret, the daughter of Thomas Englefeld', knight, and the heirs of their bodies, to hold of the chief lords for ever. In default of such heirs, successive remainders (1) to the heirs of the body of Eleanor, (2) to the heirs of John Milewater, uncle of Eleanor, namely the brother of Thomas, the father of Eleanor, and the heirs of his body, (3) to the right heirs of Roger Dodenham of Reytherwes and his heirs [sic].
Standardised forms of names. (These are tentative suggestions, intended only as a finding aid.)
Persons: Thomas Leighton, John Danvers, Robert White, William Rudhall, Henry Lovain, Richard Vaughan, Thomas Englefield, Thomas Bodenham, Richard Tyler, Thomas Latham, John Lingen, Eleanor Lingen, Margaret Englefield, John Milewater, Thomas Milewater, Roger Dodenham
Places: Weston, Rotherwas