Board Thread:Show-Related Questions and Answers/@comment-24.128.131.119-20130218041312/@comment-7302713-20130520223347

King George is not anyone's biological father. He and his wife were unable to have children and so Rumpl procured James. Now theoretically it could be that George's wife was the problem and that George had a child through an affair but the odds of him having an affair with the woman that Rumple gets the child from is a bit much. Especially because of his mum's reaction.

But while not a biological link, because of the way in which George de facto adpoted James and then David, David is the heir to his thrown. There is no one else. Basically Henry has royal blood from multiple royal families, most of whom have no other heirs. That kid has a very powerful family. He basically would inherit the Enchanted Forest.