• General Notes

  [SUSANNA KEENE.FTW]
  
  Styled Earl of Gloucester & Hertford *jure uxoris* and for the
  next decade administered the estates with the king's daughter.
  After Joan's death, his rights to the estates and title lapsed,
  and he was thenceforth treated as an ordinary baron.  His
  children by Joan of Acre were likewise excluded from the
  inheritance, and had no future connection with the Clares,
  aside from a daughter, Mary, who was married in 1307 to Duncan,
  son and heir of Duncan, earl of Fife, and Joan, the Red Earl's
  daughter by his first marriage to Alice de Lusignan.
  
  --- Michael Altschul, *A Baronial Family in Medieval England:
  The Clares, 1217-1314*, Baltimore MD (Johns Hopkins Press)
  1965. p 38-39:
  After Joan's death, his rights to the estates and titles of the
  earldoms of Gloucester & Hertford lapsed.
  Created Lord Monthermer.
  Member of the King's household bef his secret marriage to the
  King's daughter.

Details of Ralph de Monthermer's family with Joan of Acre Plantagenet