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Female Sybil (Sibilla) Marshal Click to view Sybil (Sibilla) Marshal in the family tree

Sybil (Sibilla) was born about 1191 in Pembroke, Pembrokes, Wales.  Sybil (Sibilla)'s father was William of Derby Marshal and her mother was Isabella De Clare.  Her paternal grandfather was John "The Marshal" (of Rockley) FitzGilbert; her maternal grandparents were Richard FitzGilbert De Clare and Aoife (Eva) MacMurrough.  She was an only child.  She died on April 27th, 1245.


Sybil (Sibilla)'s family with William III De Ferrers

‌Sybil (Sibilla) and William III were married in a religious ceremony before May 14th, 1219.  They had two daughters named Isabel and Maud.

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