The Kingdom-GUI has been added, an interface for easily accessing the statistics, member list and rank list of kingdoms. You can open it by clicking on the sword icon near the status bar in the upper-right corner of the screen. Choose a kingdom and click on 'Members', 'Ranks' or 'Diplomacy' to see the different things.
You can also view member and rank profiles by double-clicking on their names.
If you have the rights right for changing things you can also add, remove and change members and ranks, add allies and enemies or change the title of the kingdom.