Adelheid van Limburg-Arlon (1085-1146) (1085–1146) Parents Adelheid von Pottenstein Henry II , Duke of Lower Lorraine Children Ida of Arnsberg Siblings Agnes van Limburg-Arlon Waleran, Duke of Lower Lorraine Mathilde van Limburg-Arlon Partners Frederick of Werl-Arnsberg Kuno Graf von Horburg Conrad I, Duke of Merania