Played 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.
Justified:
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).
Double Subverted: What at first seemed like a mere dysfunctional family or perfectly normal one is revealed to have some skeletons in the closet (literally or figuratively).
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.
Parodied: The Tropers celebrate the birth of a new Troper by killing a relative.
Lampshaded: "You guys have a lot of problems..."
Zig Zagged: Some royal/noble families are like this, others are very well-adjusted.
Averted: The Tropers are a perfectly normal family. Sure they have problems, but nothing serious, and they really care about each other.