He had three biological sons, and also fourteen biological children of unknown gender named Research on, The Doctrine of, The Doctrine of, The Doctrine of, The Doctrine of, The Doctrine of, The Doctrine of, The Doctrine of, The Doctrine of, The Doctrine of, The Doctrine of, The Doctrine of, The Doctrine of, Doctrine Relating to, The Doctrine of, The Doctrine of and The Doctrine of.