Based on the feedback here, I would change this feature request so that instead of requiring minimum number of nobles to prevent roguitude, the optimal number of nobles would only be required to achieve 100% in the region indicators (production, morale, loyalty, etc.) For example, a region with only 1 noble (a lord) might only be able to achieve 33% production, 33% gold, and so on. Add a knight and that goes up to 67%, add a second knight and voilà, 100%. I think this addresses most or all of the disadvantages raised by you guys, and still retains all the advantages. So realms could still take new regions if they don't have the prescribed number of nobles.
Two major issues with that.
One: you make #of nobles you have way too important. they already have massive advantages but this makes it almost just a who has more nobles thing because of its huge impact
Two: We don't have enough nobles for that, and no we aren't going to say letting everyone have double the nobles is the solution. There are very real issues with people playing a lot of nobles.
That said, that idea can be tweaked perhaps to work, but i personally am against it. Regardless of the specifics of the method you are directly punishing for not having enough nobles, and if the realm is in !@#$ty condition because it does not have enough enough nobles it makes it a lot harder to fix. (It will probably already be crappy because of low amount of nobles but if your regions are doing poor and you don't have much gold it makes igniting war and making things fun a lot harder.)
I feel like at this time you should let things be for a bit because I can see the War Improvements Package directly affecting the proper way to handle this for various reasons.
