Hello, In EOD main map is divided between provinces and each contains 20-30 villages. The town is the main centre of the provinces.
Each town is controlled by the Lord and all villages in that region owned by him which he can distribute in his vassals. Every village/town requires food depend upon its population, If food requirement is not met than it will affect moral and reduces income.
Taxation
Every rular can decide tax to impose n his settlements but more tax more people becomes unhappy and can cause riots.
Build
Owner of settlement can choose what to build or upgrade existing buildings.
Every building gave certain income and requires maintaince cost. like if you found you'r settlement is starving it is best to build food generating buildings.
Vassals
Character will decide(according to his traits) tax for his vassals, Vassals can provide levies for war. If vassal becomes more powerful then his liege he could declares independace also demanding too much tax from vassals will make them angry and they can form group and they can try to overthrow liege.
The most important thing is Traits of the character as every character have his own unique goal and he will try to achieve his goals based upon his personality traits.