Sibyl of Montgomery was born circa 1072 to Roger I de Montgommery (1020-1094) and Mabel de Bellême (1025-1082) and died circa 1119 of unspecified causes. She married Robert Fitzhamon circa 1088 JL . Notable ancestors include Charlemagne (747-814). Ancestors are from France, Germany, Belgium.


Offspring of Sibyl of Montgomery and Robert Fitzhamon
Name Birth Death Joined with
Mabel of Gloucester (c1095-1156) 1095 1156 Robert, 1st Earl of Gloucester (1090-1147)

Hawisa of Gloucester
Daughter of Gloucester
Daughter of Gloucester

Footnotes (including sources)

‡ General
Ω Birth
  • year of birth from wedding; Sibyl was the youngest daughter
¶ Death
  • year of death from average life span