Cavaliers

"Cavaliers are a ruling species. Their advance into space, influenced by their status-driven society, was slow and methodical. No newly-founded world wanted to be seen as 'lesser' than others, so as a political maneuver, each planet was heavily industrialized and built up before colonization moved on to the next system, so in the same amount of time that humans, Thoughtful or Tribunes had colonized dozens of systems, the Cavaliers had only settled two or three. When they encountered the Compact, they were delighted to be offered a position as a ruling species. They can be a bit insufferable, lording the fact that they were brought into the Compact as full members over species like the Judiciaries (even though they've been ruling members for much, much longer) and the Builders and particularly the uncivilized, primitive client races. The Cavaliers are thoroughly convinced of their own superiority (and the superiority of their fellow 'true' ruling species) and tend to react with indignation when their divine right to shepherd the lesser races of the galaxy is called into question. They prefer to remain amongst their fellow civilized peoples and rarely venture from the more cosmopolitan areas of the Compact."

-Proximal Flame