*Waltheof Earl of Northumberland
born Abt 1046 Of Northumberland, England
died 31 May 1076
buried Jun 1076 Crowland, Lincolnshire, England

father:
*Siward Biornsson
born Abt 1020 Of Denmark
died 1055 York, Yorkshire, England
buried Galmanho Abbey, York, Yorkshire, England

mother:
*Aelfled (Elfleda) of Bernicia
born Abt 1031 Of, Bernicia, Northumbria, England
married Abt 1033 Of Northumberland, England

siblings:
Osbeorne of Northumberland born Abt 1050 Of Northumberland, England
*Sybil Fitzsiward of Northumberland
born Abt 1040(?) Of Northumberland, England died 1070
(another source says born 1014)

spouse:
*Judith Lens De Boulogne
born 1054/1055 Of, Lens, Artois, France
married 1070 Of, Artois, France

children:
*Matilda (Maud) Huntingdon born Abt 1072 Of, Huntington, Huntingdonshire, England
died 23 Apr 1130/1131 Scotland buried 1130/1131 Scone, Perthshire, England
*Alice (Adeliza) Huntingdon born Abt 1085 Of, Flamsted, Hertfordshire, England
died Aft 1126

biographical and/or anecdotal:
*Waltheof made peace with *William the Conqueror and then openly rebelled.
He was beheaded on a hilltop in full public view.
This execution ended the reign of the Saxon noblemen.
(Winston Churchill's "History of the English-speaking People")

notes or source:
LDS