Incentives work.
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 voilĂ , 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.