Nielsen Hayden genealogy
Descendants of Waltheof
1027 - 1076 (49 years)Father: Siward (of Denmark - 1055 York, Yorkshire, England)
Mother: Ælfled of Bernicia
Waltheof (1027 of Potton, Bedfordshire, England - 31 May 1076 Winchester, Hampshire, England)
Judith of Lens (Abt 1054 - Aft 1086)(m. Aft Jan 1070)
   ├─ Alice of Northumberland ( - Aft 1126)
   │ Ralph de Tony (Abt 1081 - 1126 bur.Châtillon-les-Conches Abbey, Eure, Normandy, France)(m. 1103)
   │    └─ Roger de Tony (Abt 1104 of Flamstead, Hertfordshire, England - Aft 29 Sep 1158)
   │     Ida de Hainaut (m. Abt 9 Aug 1138)
   │        │ + William de Mohun (of Dunster, Williton, Somerset, England - 1176)
   │        └─ Ralph de Tony (Abt 1140 of Flamstead, Hertfordshire, England - 1162) =>
   │         + Margaret of Leicester (Abt 1125 - Aft 1185)(m. Aft 1155)
   └─ Maud of Northumberland (Abt 1072 - Between 1130 and 1131 bur.Scone, Perthshire, Scotland)
    Simon I de Senlis ( - Between 1111 and 1113)(m. Bef 1091)
    :   ├─ St. Waltheof ( - 3 Aug 1159)
    :   ├─ Maud de Senlis (Abt 1092 - Aft 1158)
    :   │ Robert fitz Richard (of Dunmow, Essex, England -
    :   │ : Aft 28 Nov 1137 bur.St. Neot's Priory, Cambridgeshire, England)(m. 1112)
    :   │ : Aft 28 Nov 1137 bur.St. Neot's Priory, Cambridgeshire, England)(m. 1112)
    :   │ :   │ + William II d'Aubeney (of Belvoir, Leicestershire, England - 1167)
    :   │ :   └─ Walter fitz Robert (Bef 1134 of Little Dunmow, Essex, England -
    :   │ :    1198 Little Dunmow, Essex, England) =>
    :   │ :    1198 Little Dunmow, Essex, England) =>
    :   │ :    + Maud de Lucy (of Diss, Norfolk, England - Aft 1170)
    :   │ Saher I de Quincy (of Long Buckby, Northamptonshire, England - Between 1156 and 1158)(m. Aft 1136)
    :   │    ├─ Robert de Quincy (of Tranant, East Lothian, Scotland - Aft 20 Aug 1201) =>
    :   │    │ + Orabel fitz Ness ( - Bef 30 Jun 1203)(m. Bef 1155)
    :   │     + Roger de Huntingfield (Bef 1145 of Huntingfield, Suffolk, England - 1204)
    :   └─ Simon II de Senlis (Abt 1103 - Aug 1153 bur.St. Andrew's, Fife, Scotland)
    :    Isabel of Leicester ( - Aft 1190)(m. Bef 1138)
    :        + William Mauduit (Between 1130 and 1135 of Hanslope, Buckinghamshire, England -
    :        2 Oct 1194 bur.Waverley Abbey, Surrey, England)
    :        2 Oct 1194 bur.Waverley Abbey, Surrey, England)
    David I, King of Scotland (Abt 1080 - 24 May 1153 Carlisle, Cumberland, England)(m. Bef Jul 1113)
       └─ Henry of Scotland (Abt 1114 - 12 Jun 1152 bur.Kelso Abbey, Roxburghshire, Scotland)
        Ada de Warenne ( - 1178)(m. Aft 9 Apr 1139)
           │ + Floris III of Holland (Abt 1140 - 1 Aug 1190 Antioch, Anatolia)(m. 1162)
           ├─ William I "The Lion", King of Scotland (1143 - 4 Dec 1214 Stirling, Stirlingshire, Scotland) =>
           │ + (Unknown mistress of William the Lion, King of Scotland)
           │ + (Unknown) de Avenal
           │ + Ermengarde de Beaumont ( - 11 Feb 1233 bur.Balmerino Abbey, Fife, Scotland)(m. 5 Sep 1186)
           ├─ Margaret of Huntingdon (Abt 1145 - 1201 bur.Sawtrey Abbey, Huntingdonshire, England) =>
           │ + Conan IV (Abt 1138 - 20 Feb 1171)(m. 1160 England)
           │ + Humphrey de Bohun (Bef 1144 of Trowbridge, Wiltshire, England - 1181 bur.Llanthony Priory, outside
           │ Gloucester, Gloucestershire, England)(m. Between 29 Sep 1172 and 1 Jan 1175)
           │ Gloucester, Gloucestershire, England)(m. Between 29 Sep 1172 and 1 Jan 1175)
           └─ David of Scotland (1152 - 17 Jun 1219 Jerdelay, Yardley, Northamptonshire, England) =>
            + (Unknown mistress of David of Scotland)
            + Maud of Chester (1171 - Abt 6 Jan 1233)(m. 26 Aug 1190)