Would the Nobles be able to have their own disloyal nobles, thus causing a massive civil war between dozens of factions simply because there wasn't enough alcohol?
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My current thinking is that each Noble will belong to a House, with 3 Houses generated at the start of the game. When there's a revolt an entire House will rebel to form it's own tribe. That's not set in stone, however, I do like the idea of individual Noble's splintering off.
Nobles wont get uppity due to not enough alcohol (though with the Revolts in the Morale Update your citizenry might), they'll be more concerned about politics and influence.