Wilhelm I Graf von Julich

Wilhelm I Graf was born about 1133 in Julich, Rheinland, Prussia.  Wilhelm I Graf's father is Gerhard IV Graf von Julich.  His paternal grandfather is Gerhard III Graf von Julich.  He was an only child.  He died about 1176 in Julich, Rheinland, Prussia.

He had a biological son and a biological daughter, named Wilhelm II Graf and Jutta.