Udalrich may well have been Arnold's father, but it is also possible that a brother, cousin or uncle of Udalrich was Arnold's father.
|Offspring of Arnold von Rottgau and Hiltiburg von Bayern (?-?)|
|Arnold II von Kärntner Mark (?-1056)||1056||Regilla de Verdun (?-1050)|
|Aribo von Ensburg (?-?)|