In the beginning of the Original Trilogy 3 Gorgon clones named Agrippa, Gaius and Julius are dropped on a recently terraformed planet. Though created to be equals Agrippa very fast takes a leader role, which creates tensions with the other two clones.
The Gorgons are arch enemies of the Dark Angels.

Though created as an equal of the other 2 Gorgons, Agrippa is the one who shows the most initiative and becomes more and more tyrannical. He has an obsession with roman dress style and becomes paranoid for murder attacks leading to strict security protocols and an obsession for different sorts of armor.

Both clones are inferior to Agrippa. They do not have his initiative nor talent for politics. As often in life the less talented are the ones to fear. They start conspiring behind Agrippa’s back and in the end stab him to death. Or, at least that is what they believe.