Throughout House of the Dragon, the Targaryens have lived up to the family motto. "Fire and Blood" has been a rallying cry for every member of the family. And when the Targaryen's are wronged, revenge and war are typically what follows. They wage war, they fight amongst themselves, and they backstab each other at every available opportunity. With House of the Dragon Season 2 on the way, their conflicts are likely only going to grow worse and more bloody.
Source：https://www.cbr.com/house-of-the-dragon-season-2-character-revenge/
