Mount&Blade: Warband/Founding a kingdom

To found a kingdom one has to take a castle while not a lord or a mercenary to any faction. You will be given the castle, and you will choose your faction's name and a minister of either a local or one of your companions. Your faction's colour will be red. You will be able to move your court once you have more places, and you can send emissaries to different factions, and declare your lords (you can choose your companions to be lords) traitors.