How did conquerors integrate land? Specifically during the late medieval period?
I am specifically asking around the 1300s to 1500s, how did conquers integrate land once they took it by force in a war? How did they collect taxes, revenues, etc from newly conquered land, as well as enforce their laws and customs to ensure people did as they asked? You have gotten the Kingdom you fought against to stop protecting the land, but how long does it take to actually get the locals there to give you taxes, and how?