|Duke of Saxony|
|Died||28 March 1072|
Saint Michael Church in Lüneburg
|Spouse||Wulfhild of Norway|
Gertrude of Haldensleben
|Issue||Magnus, Duke of Saxony|
|House||House of Billung|
|Mother||Eilika of Schweinfurt|
Ordulf's entire reign was occupied by wars with the Wends. He was allied with Denmark in this endeavor, and he strengthened the alliance by marrying Wulfhild of Norway, the daughter of King Olaf II of Norway, in 1042. Their son Magnus succeeded Ordulf as Duke of Saxony.
Ordulf's second wife, Gertrude of Haldensleben, daughter of a Count Conrad, was imprisoned in Mainz in 1076 and died 21 February 1116. Their son Bernard died after a fall from a horse in Lüneburg on 15 July of an unknown year.
Ordulf is buried in the Church of St. Michael in Lüneburg.
- Boshof, Egon (2008). Die Salier (in German). W. Kohlhammer Gmbh.
- Adam of Bremen (2002). History of the Archbishops of Hamburg-Bremen. Translated by Tschan, Francis J. Columbia University Press.
- Brooke, Z.N. (1926). "Germany under Henry IV and Henry V". In Bury, J.B.; Tanner, J.R.; Previté-Orton, C.W.; Brooke, Z.N. (eds.). The Cambridge Medieval History. Vol. V. Cambridge University Press.