The primary source which confirms his parentage has not yet been identified. "Heinricus…rex" confirmed the donation of property "…in comitatu Gerardi comitis…" to Kloster Otmarsheim by "vidua Chunigund…a marito illius Rudolpho" by charter dated 1 Mar 1064.
Graf im Nordgau 1065. "Heinricus…rex" granted property "duas villas Hochfeld et Suueichusen cum foresto Heiligenforst in comitatu Gerhardi comitis in pago Nortcowe" to "Eberhardo comiti" by charter dated 22 May 1065. "Heinricus…rex" granted property "in pago Nortgoe in comitatu Gerhardi comitis" to Kloster Sulz by charter dated 13 Aug 1077.
Graf von Egisheim 1098. 1
Research Notes: