I am a lord, I own castles, fiefs and manors. I am the second highest social class in feudalism.I have very much power and I rule over very many people. Me and people like me are the heart of the economy .
Most of the peasants, or lowest class of feudalism, that work for me in my manor are called serfs. They help the manor stay self sufficient. These surfs can also not leave without my permission. I have much control over these peoples live.
Out here are the Knights. They protect my estate because there are a lot of power struggles in these times. These people work for me and will battle who ever threatens me. They have adopted a custom called chivalry along with troubadours. Chivalry requires knights to be brave loyal and truthful.
Vassals often times are also lords. Vassals have mutual obligations as lords. They work under lords and help them keep everyone in check. They help run military and serfs in exchange for a rank as tenant or control of a fief. Often times vassals will pledge to multiple lords.
This is my wife and son. My wife is a noblewomen. She takes over the estate if I am away, and sometimes she will come and protect my land. My son has birthright to all of my land and possessions if something were to happen to me.
All in all, I am a lord, I protect my land with my army, this makes me very powerful and intimidating. I have power over many people and without me and others like me the economy would collapse. I am the second highest class of feudalism, only under royalty.