Bastion's father was a knight. Little is known. Party knows nothing.

nothing is known at this time...
 
Rumors have come from Elder of the Dawngreets who said:
 

"What I can tell you is that they were very powerful in their own ways, and they worked for a king. That king had something to do with their death. I don't think you know all about their death. They died from a sickness, true -- but not a natural sickness. And I think that's all I can tell you right now. But it's something you might want to look into."