Originally Posted by Chasing Hawk

Jon Snow's Dad is Dani's older Brother. And by rights in that era he is next in line for the throne before Dani. And while it is gross "intermingling" of same family bloodlines was common in that show...lol

This might help sort out family trees:

https://gameofthrones.fandom.com/wik...tree_templates

This site is actually a good one for GOT fans.