Question

How was the social hierarchy of the Middle Ages an outgrowth of feudalism?
Ill give a medal

Answer 1

@ranga

Answer 2

@beccaboo333

Answer 3

Feudalism required a new set of social rules.
No longer would the old tribal systems work, so everything had to change.

With the rise of the noblemen and knights, a professional government and warrior level of society, there needed to be something to guide such groups to not abusing their power. The rules of chivlary were such a guide.
Since those lower level nobles had to function in a different way (no longer farming and producing themselves), they clearly separated out from the common people. Since they were due fealty (obedience and respect) by the commoners, they were treated better.

Then you had the rise of greater nobles and royalty, and the same thing happened again. Those of higher rank were given even greater respect and status.
~yahoo answers