He inherited both of his father's marches on the death of his brother Poppo II in 1098, but was divested of Istria sometime between 1101 and 1107, when it went to Engelbert II of Sponheim, whose father had preceded Ulric's brother in the march.
He inherited both of his father's military campaigns on the death of his brother Poppo II in 1098, but was stripped of Istria sometime between 1101 and 1107, when it went to Engelbert II of Sponheim, whose father had preceded Ulric's brother in the march.