George lives in fifteenth-century england. he is bound to the land but does not own it. he works the land but must give a portion of his harvest to the landowner. in return, he gets protection from roaming bandits and thieves. george is a:

In this case, I believe that  George is a: Serf
in the fifteenth-century England, Serf is an agricultural worker that is worked under a set of term&agreement to work under his lord's estate.
In most cases, the term&agreement took form in a revenue sharing model that will be beneficial to both parties involved