Fire and Blood
The Targaryen crest is a dragon with three heads, and their words are ‘Fire and blood’. This is based on their heritage, as they come from an old Valyrian line believed to be the blood of the dragon. They are the last of the Valyrian families which tamed dragons. When Aegon came to King’s Landing, he took it with his dragons, with fire and by waging war against the seven kingdoms.