The Annalista Saxo names "Liudolfus comes Saxonicus, filius Brunonis de Bruneswic et Gisle inperatricis", when recording his death. His parentage is confirmed by the charter dated 1051 under which "Heinricus…Romanorum imperator augustus" donated "comitatum quem Brun eiusque filius noster frater Liutolfus nec non et eius filius Echbreht comites…in pagis Northduringen, Darlingen, Valen, Salthga, Grethe, Mulbeze" to the church of Hildesheim. His birth date range is estimated assuming that he was "the young Count Liudolf" whom Thietmar notes was captured during a conflict with the Poles, dated to 1015, although it is not certain that this was the same person. Vajay suggests a birth date range of [1006/08], which is more consistent with his mother's birth date but appears late for the 1015 capture. The Annalista Saxo records that "Liudolfus comes Saxonicus, filius Brunonis de Bruneswic et Gisle inperatricis" was killed "IX Kal Maii inmatura…cum maximo suorum conprovincialium merore".
He was installed as Markgraf in Frisia by his stepfather Emperor Konrad II after 1 Jul 1028. 1
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