First poll. I arbitrarily selected Minor House for House Heslin.
NASCENT HOUSE
The House has only just acquired Minor House status. They might have distinguished themselves in battle or at court, or perhaps developed a device or skill that might prove extremely valuable. At this point the House is only a noble family with a small retinue and a little land granted to them by their patron House Major, who controls the planet they reside on. However, as new arrivals to the Imperial stage they have no real enemies and little to lose. With time, they might rise to control their home planet, and perhaps even beyond.
HOUSE MINOR
The House is an established House Minor, one of the most important of the vassal Houses that serve the same House Major. The House has a strong tradition or dedication and service to their patron, but has not established itself far beyond their home planet. Their holdings will cover around a third of their world or might be set upon a moon controlled by their House Major. However, they must constantly jockey for power among the other Minor Houses that also serve their House Major, rivals for its favor.
HOUSE MAJOR
The House is the ruling power of an entire planet. Several Minor Houses serve its interests and it is a serious contender in the politics of the Imperium. The House has several agents and soldiers at its command and is a leading force in at least one area of commerce. Unfortunately, this sort of power does not come without making enemies. Spies and assassins are everywhere and there are many rival Houses, Great and Minor, that covet the power and resources this House possesses.
STARTING DOMAINS
Depending on its type, each House begins with one or more domains:
@ Nascent House: 1 secondary domain
@ House Minor: 1 primary domain and 1 secondary domain
@ House Major: 1 primary domain and 2 secondary domains