I would not know, as I never knew him prior to the lad stumbling into my camp with your youngest daughter.

[ but more on that later. ]

Your son was foolish to trust him. When his father crowned himself king yet again, he chose his own blood [ as I once had with Robert remains mercifully unsaid. ] over his so-called king. He returned to Winterfell, and murdered your two youngest sons, though he has since insisted that he let them go.