According to the data I have, and excluding the Colonies (which are a special case), Eston is tied for third in the game among realms with two nobles per family. (The actual figure is 1.29 nobles per player in Eston, which works out to nearly a third of your players having two characters in the realm.)
In other words: not that much. I surprised that a mere 1.29 ratio, less than a third, warrants third rank...
