Heinrich I Of Alsace Landgraf

Heinrich I's father was Siegbert IV Von Werd Graf and his mother is Adelheid Von Rixingen.  His paternal grandfather was Siegbert III D Alsace Comte and his paternal grandmother is Adelheid ().  He was an only child.  He died in 1238.  He was buried in 1238.

They had a son named Heinrich II Siegbert.