Slaves are used to manage the daily affairs .
Explanation:
In the late middle ages the township was expanded along the region and more and more sophistication has come up for those the landlords. And they are in need of men and women to work on field and houses and to maintain the township.
To carry out the daily routine work they are in need of slaves who can work in the fields as well as in the household chores. The landlords classified the slaves into different types they agriculture field worker, house slaves and servants. In the late Middle Ages the agriculture production was at peak and slaves did lot of physically difficult work.