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Descendants of Sibyl de Montgomery

40 descendants shown over up to 4 generations. Each marriage is listed with the children from it, oldest first.

Sibyl de Montgomery 1060–1094

m. 1084 Robert Fitzhamon De Than 1055–1107
- Mabel (Sibyl) Fitz-Hamon 1094–1157
  Gloucester, ENG
  
  m. ABT 1120 1st Earl of Gloucester Robert de Caen 1090–1147
  - William Fitz Robert de Mellent 1116–1183
    Gloucester
    
    m. ABT 1150 Hawise de Beaumont
    - Robert de Mellent 1151–1166
    - Mabel de Mellent 1152–1260
      
      m. ABT 1170 Count of Evreux Amaury De Montfort d. 1191
      - Count of Evreux Amaury de Montfort
    - Countess of Glouc Amice FitzWilliam de Mellent 1160–1224
      Tewkesbury, Gloucester, ENG
      
      m. 1182 Earl of Hereford Richard de Clare b. 1162
      - Maud Miltilda 1175–1213
      - Gilbert de Clare 1182–1230
        Hertford, Hertfordshire, ENG
      - Richard de Clare 1186–1228
        London, Middlesex, ENG
    - Isabelle De Clare of Gloucester 1160–1217
      Gloucester
      
      m. 29 AUG 1189 Marlborough, Wiltshire John I of England 1167–1216
      
      m. 16 JAN 1214 to 26 Jan Earl of Essex Geoffrey de Mandeville d. 1215
      
      m. 1217 Hubert de Burgh d. 1243
  - Maude Gloucester\\ de Caen 1120–1189
    Gloucester, ENG
    
    m. ABT 1141 Bristol, Gloucestershire, ENG Earl of Chester Ranulph de Gernon d. 1153
    - Joanna De Meschines b. 1145
      of Chester, Cheshire, ENG
    - Hugh, Earl of Chester de Keveliock (Cyveliog) 1147–1181
      Keveloic, Merionethshire, Wales
      
      partner not recorded
      - Amicia De Meschines b. 1167
        Kevelioc, Merionethshire, Wales
      m. 1169 Bertrade D'Evreux De Montfort 1155–1189
      - Matilda (Maud) de Keveliock b. 1171
      - Ranulf de Blundeville 1172–1232
        Blandevil, the town of Album Monasterium, modern Oswestry, in Powys
      - Agnes (Alice) de Keveliock 1174–1247
        of Tutbury, Staffordshire, ENG
      - Mabel De Meschines
      - Countess of Lincoln Hawise De Meschines d. 1232
      - Amicia of Chester
    - Richard de Meschines
    - Beatrix de Meschines
      
      partner not recorded
      - David "le Clerk" de Malpas
  - Philippe FitzRobert Gai (Gray) b. 1124
    Gloucester
    
    partner not recorded
    - Aline Gai (Gray) b. 1159
      
      m. ABT 1180 Wycomb, ENG partner not recorded
      - Aline (Avila) Basset 1189–1224
        Headington, Oxfordshire, ENG
      - Katherine Basset b. 1190
      - Basset b. 1217
      - Philip Basset d. 1271
  - Roger de Caen 1133–1179
    
    partner not recorded
    - Mabira de Caen d. 1190
      
      partner not recorded
      - Richard de Cambernon 1119–1199
      - Jordan de Cambernon 1121–1152
      - Henry de Champernon d. 1203
  - Richard de Than d. 1142
  - Hamon of Gloucester
  - Richard of Gloucester d. 1175
  - Robert 'FitzRoy' of Gloucester
    
    partner not recorded
    - Robert
      
      Earl of Devon Hawise de Reviers
      - Mabel of Gloucester