I had a thought that Dany and Melisandre could be extended family. Like really extended

The Lord of Light probably isn't an unknown god, even though I would prefer if he was, he's probably a god from the south, from Old Valyria, which is probably where the Targaryens hailed from, yet their time in King's Landing made them lose that relation. The connection between the Lord of Light and Dany would be the fire. LoL is clearly all about burning shit, dragons are all about burning shit, and Dany is all about not being able to get her shit burned