Question: Who is the paternal grandmother of Gerhard V Of Jülich?
Sentence (from "William IV, Count of Jülich"): On the night of 16 March 1278, which has become known as Gertrudisnacht (Night of St. Gertrude), William, along with his sons William and Roland (and according to some sources, a third son), entered the town of Aachen to collect taxes for King Rudolph I of Germany.
Relevant evidence: No