Isabel St. Liz, b. ABT 1130 in Huntingdon, Huntingdonshire, England

Father: Simon de St. Liz, b. ABT 1098 in Northamptonshire, England, d. August 1153
Mother: Isabel (Elizabeth) de Beaumont, b. ABT 1109

Spouse: William Mauduit (3), b. ABT 1126 in Hanslope, Buckinghamshire, England, d. 1170

Father: William Mauduit (2), b. ABT 1094 in Hanslope, Buckinghamshire, England, d. 1195
Mother: Adelicia (Alice) de St. Liz, b. ABT 1100 in Hanslope, Buckinghamshire, England

Married ABT 1160 in Hanslope, Buckinghamshire, England.

Children:

1. Robert Mauduit, b. ABT 1169 in Hanslope, Buckinghamshire, England, m. Isabel Basset, bef. 1190 in Hanslope, Buckinghamshire, England, d. June 1221/2

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Simon de St. Liz, b. ABT 1098 in Northamptonshire, England, d. August 1153

Father: Simon de St. Liz (Senlis), b. ABT 1046 in Normandy, France, d. ABT 1111 in Nievre, France
Mother: Maud de Senlis, b. 1072 in Huntingdon, Huntingdonshire, England, d. 23 April 1130 in Scotland

Spouse: Isabel (Elizabeth) de Beaumont, b. ABT 1109

Father: Robert I de Beaumont, Earl of Leicester, b. ABT 1048, d. 5 June 1118
Mother: Amice de Gael

Married ABT 1129 in Hanslope, Buckinghamshire, England.

Children:

1. Isabel St. Liz, b. ABT 1130 in Huntingdon, Huntingdonshire, England, m. William Mauduit (3), ABT 1160 in Hanslope, Buckinghamshire, England

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Simon de St. Liz (Senlis), b. ABT 1046 in Normandy, France, d. ABT 1111 in Nievre, France

Father: Ranulph "the Rich", b. ABT 1018 in Normandy, France

Simon was known as "the Crusader."

Spouse: Maud de Senlis, b. 1072 in Huntingdon, Huntingdonshire, England, m. David I, King of Scotland, 1113, d. 23 April 1130 in Scotland

Father: Waltheof II, Earl of Northumberland, b. ABT 1046 in Northumberland, England, d. 31 May 1076 in Winchester, Cheshire, England, he was captured and beheaded by William the Conqueror for conspiracy.
Mother: Judith of Lens, b. ABT 1054 in Lens, Artois, France

Married 1090 in Huntingdonshire, England.

Children:

1. Maud de St. Liz, b. ABT 1096 in Tunbridge, Kent, England, m. Saher de Quincy, m. Robert Fitzrichard de Clare, Baron of Baynard, 1112 in Buckley, Northamptonshire, England, d. 1140
2. Simon de St. Liz, b. ABT 1098 in Northamptonshire, England, m. Isabel (Elizabeth) de Beaumont, ABT 1129 in Hanslope, Buckinghamshire, England, d. August 1153

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Ranulph "the Rich", b. ABT 1018 in Normandy, France

Children:

1. Simon de St. Liz (Senlis), b. ABT 1046 in Normandy, France, m. Maud de Senlis, 1090 in Huntingdonshire, England, d. ABT 1111 in Nievre, France

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Waltheof II, Earl of Northumberland, b. ABT 1046 in Northumberland, England, d. 31 May 1076 in Winchester, Cheshire, England, he was captured and beheaded by William the Conqueror for conspiracy.

Father: Siward Bjornsson, b. ABT 1020 in Denmark, d. 1055 in York, Yorkshire, England
Mother: Aelflaed of Bernicia, b. ABT 1031 in Bernicia, Northumbria, England

Spouse: Judith of Lens, b. ABT 1054 in Lens, Artois, France

Father: Lambert of Lens-Boulogne, b. ABT 1025 in Artois, France
Mother: Adeliza, Countess of Aumale, b. 1029

Married 1070 in Artois, France.

Children:

1. Maud de Senlis, b. 1072 in Huntingdon, Huntingdonshire, England, m. Simon de St. Liz (Senlis), 1090 in Huntingdonshire, England, m. David I, King of Scotland, 1113, d. 23 April 1130 in Scotland

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Siward Bjornsson, b. ABT 1020 in Denmark, d. 1055 in York, Yorkshire, England

Father: Bjorn Ulfuisson, b. ABT 1000 in Denmark, d. 1045/9

Spouse: Aelflaed of Bernicia, b. ABT 1031 in Bernicia, Northumbria, England

Father: Aldred of Bernicia, b. ABT 994 in Bernicia, Northumbria, England, d. ABT 1039

Married ABT 1033 in Northumberland, England.

Children:

1. Waltheof II, Earl of Northumberland, b. ABT 1046 in Northumberland, England, m. Judith of Lens, 1070 in Artois, France, d. 31 May 1076 in Winchester, Cheshire, England, he was captured and beheaded by William the Conqueror for conspiracy.

Spouse: Godiva, Countess of Northumberland

Married ABT 1044 in England.

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Bjorn Ulfuisson, b. ABT 1000 in Denmark, d. 1045/9

Father: Ulfui

Children:

1. Siward Bjornsson, b. ABT 1020 in Denmark, m. Aelflaed of Bernicia, ABT 1033 in Northumberland, England, m. Godiva, Countess of Northumberland, ABT 1044 in England, d. 1055 in York, Yorkshire, England

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Ulfui

Children:

1. Bjorn Ulfuisson, b. ABT 1000 in Denmark, d. 1045/9

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