Roger De Montgomery, I
980 - Yes, date unknown(
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- 1 Roger De Montgomery, I [1] b. 980 d. Yes, date unknown
- Josceline, of Pont-Audemer
- 2 Earl of Shrewsbury Roger Montgomery [1.1] b. 1005 d. 27 Jul 1094
- Mabel Talvas d. 2 Dec 1079
- 3 Sibyl Montgomery [1.1.1]
- Lord of Glamorgan Robert Fitz Hamon
- 4 Mabel Fitz Hamon [1.1.1.1] b. 1090 d. 1157
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- 4 Mabel Fitz Hamon [1.1.1.1]
- 3 Maude Montgomery [1.1.2] b. 1041 d. 1107
- Count Robert De Mortaigne b. 1037 d. 8 Dec 1090
- 4 Agnes De Mortaigne [1.1.2.1] b. 1054 d. Yes, date unknown
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- 4 Earl of Cornwall William De Mortaigne [1.1.2.2] b. 1060 d. 1140
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- 4 Agnes De Mortaigne [1.1.2.1]
- 3 Earl of Shrewsbury Robert Talvas de belleme [1.1.3] b. 1054 d. 8 May 1131
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- 4 Count of Ponthieu William Talvas [1.1.3.1] b. 1106 d. 30 Jun 1171
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- 4 Count of Ponthieu William Talvas [1.1.3.1]
- 3 Roger Montgomery [1.1.4] b. 1058 d. 1102
- Countess Almodis La marche b. 1062 d. Yes, date unknown
- 4 Avice Montgomery [1.1.4.1] b. 1088 d. 1149
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- 4 Avice Montgomery [1.1.4.1]
- 3 Sibyl Montgomery [1.1.1]
- 2 Earl of Shrewsbury Roger Montgomery [1.1]