His daughter Grace fell in love with a young runner of the Thieves Guild. When he uncovered this affair he sent Grace off to his cousin Loretta's country estate until he could have the boy dealt with. There was some rumor that Grace was with child.
Grace is the daughter of Lorenz and Beatrice Pinot. Grace and Quinn fell madly in love as teenagers. Her father learned of her affair and shipped her off to her aunt's country estate. There are rumors she was pregnant at the time but that is unconfirmed.