i was curious of how the malfoys would react to the revelations about snape's true loyalties. i also liked him being related to the malfoys and blacks. i am not sure if i remember correctly, but i think the family tree in grimmauld place also revealed that the blacks were related to a number of other families that were featured in the books, like the crabbes, the flints, bulstrodes, rosiers, prewetts, etc., so it would make perfect sense that the princes are also somehow related. very lovely!