Margaret Fiennes, Baroness Mortimer

Margaret de Fiennes
Baroness Mortimer
Spouse(s) Edmund Mortimer, 2nd Baron Mortimer


Roger Mortimer, 1st Earl of March
Maud de Verdun
John Mortimer
Walter Mortimer, Rector of Kingston
Edmund Mortimer, Rector of Hodnet
Hugh Mortimer
Noble family Fiennes (by birth)
Mortimer (by marriage)
Father William II de Fiennes, Baron Tingry
Mother Blanche de Brienne
Born After 1269
Died 7 February 1333

Margaret de Fiennes, Baroness Mortimer (after 1269 7 February 1333), was an English noblewoman born to William II de Fiennes, Baron Tingry and Blanche de Brienne. Her paternal grandparents were Enguerrand II de Fiennes and Isabelle de Conde. Her maternal grandparents were Jean de Brienne and Jeanne, Dame de Chateaudun.

Margaret had a sister, Joan de Fiennes (c. 1273 - before 26 October 1309), whose daughter, Margaret Wake, was the mother of Joan of Kent. Therefore, Margaret de Fiennes was a great-aunt of Joan, the Fair Maid of Kent. Margaret de Fiennes was also a first cousin of Humphrey de Bohun, 4th Earl of Hereford.

In September 1285, when she was fourteen or fifteen years old, Margaret married Edmund Mortimer of Wigmore, 2nd Baron Mortimer, the son of Roger Mortimer, 1st Baron Mortimer and Maud de Braose. They had eight children.


They also had two daughters who became nuns; Elizabeth and Joan.[1]


  1. 1 2 3 4 5 6 7 Sir Bernard Burke. A genealogical history of the dormant, abeyant, forfeited, and extinct peerages of the British empire, Harrison, 1866. pg 384. Google eBook
  2. Douglas Richardson. Magna Carta Ancestry, Genealogical Publishing Com, 2005. pg 247-49.

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