Oh, my friend, it is a difficult question to answer... however, from my experience playing games inspired by the Middle Ages, seen movies, series and read history... I can say that it was a dark era, where you had to know how to survive, know when to fight and when not....

I would invoke @josemape, because I would need a friend I could totally trust, and who is willing to fight shoulder to shoulder with me to defend our ideals and survive in that magical land! But also because he is someone intelligent, with whom I could more easily get other humans and create a community on the island.