We know this because the entire Dance of the Dragons civil war is laid out in the book Fire & Blood; the fates of characters like Daemon Targaryen ... in having Rhaenyra put to death; the dragon ...

In House of the Dragon Season 2, episode 7, after finding out that Seasmoke's new rider is Addam of Hull, Rhaenyra Targaryen (Emma ... prospect of change — even death — given the alternatives.

Resolving the issues between Rhaenyra and Alicent should fall to King Viserys, but the king was, is, and will probably be forever uninterested in managing the consequences of his actions.