Waltheof I UNKNOWN 
Waltheof I was born before 0960 in Northumbria,ENGLAND. Waltheof I's father was Oswulf Earldorman De Northumbria. His paternal grandfather was Ealdred Lord De Bamborough. He was an only child. He died about 0994.General Notes
Name Prefix:<NPFX> Earldorman of Northumbria
PED OF AUGUSTINE H. AYERS
TITL Garner, Lorraine Ann "Lori" PUBL P.O. Box 577, Bayview, ID 83803
Her sources included, but may not be limited to: Burke's Landed Gentry, Burke's Dormant & Extinct Peerage, Burke's Peerage of American Presidents, Debrett's Peerage, Oxford histories & "numerous other reference works"
very good to excellent, although she has a tendency to follow Burke's Hardcopy notes of Lori Garner Elmore.
MEDI Letter
TEXT Waltheof the Elder E. of Northumbria s of Siward
TEXT Known as "the Elder".
_FA1 PLAC Acceded: circa 965. Known as "The Elder".
_FA2 PLAC Lord of Bamburgh.
He had a biological son named Earl of Northumberland.
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Children
Earl of Northumberland Ughtred
Earl of Northumberland was born about 0971 in Northumberland,ENGLAND. He died in 1016.