This is for the Dying of the Dragons and the part of Heirs of the Dragon that doesn't concern Jaehaerys I.
Considering we got nearly everything on Viserys I in TRP I don't think that needs a section on its own - although it is fun and to look for differences there.
Daemon certainly would have been, one assumes. And considering they were touchingly close and the man seems to have been desperately trying to make up for being a non-existent, shitty father it seems to me that he may have also told Nettles about that. There must be a reason why she is as distraught as he was when they parted ways.
Nettles is more or less confirmed to have the fatherless daughter of a dockside whore on Driftmark. Her age fits with the time Daemon would have spent time there