A nobleman who took care of Parsifal’s education and raise since the uncivilized youth had commit a faux pais at the court.
At the old Gurnemans Parsifal (Percivale) got acquainted with the knighthood’s all laws and customs and learn to behave. He also went to mass and learnt that the Christian man’s happiness is to sacrifice, cross oneself and bid the Devil the edge. The student was quick to learn but could not see behind the outwork.
He obeyed Gurnemans rules that a knight never asks a question, whatever strange things he might see.
See also
Grail Question | The Legend of King Arthur