Straight: The Tropers, a well-known Blueblood family have all sorts of issues, including (but not limited to) incest, patricide, fratricide, alcoholism, and drug abuse.
Exaggerated: The Tropers have a Tangled Family Tree, and are always feuding with each other. A member of this family is lucky to survive past puberty.
Downplayed: The Tropers don't always see eye to eye, but that doesn't mean they completely hate each other.
Because of their status, there was a lot of internal power struggle within the family (it also doesn't help if there was a long history of inbreeding; inbred lines have been known to show increased aggression).
Reconstructed: The Tropers stop marrying within their family line, which reduces genetic problems and aggression over time. They also learn to resolve problems constructively and peacefully. The next generations are better adjusted, and their legacy lives on.