In DGSD, before she died, DY's mom (I forget her name, somebody help please) told DY who his real father was. DY's real father was the First Evil DYQ. Now, my question is: how/when did DY's mom realize that DY's real father was DYQ? Surely not the night when the incident happened, 'cause that time she just thought of punishing her husband by giving herself into whom she thought as someone so low and ugly. Of course if that time she knew it was Prince DYQ, she would not think of him of someone low, regardless of how disfigured his face had been.
Any thoughts?