What were his plans, then, for the others? Entrust them to other families for a few decades, sure, but what about after the inevitable deaths of his followers? Would he really be so cocky as to think that all of their descendants would follow him? The Lestranges never procreated, true, but Lucius Malfoy’s only child turned against the Dark Lord to protect Harry. If the Diary had still been in action, he would have delivered it to Harry and Hermione. That was one Horcrux which was doomed to destruction several ways over!