Vassals

A Vassal is a holder of land who has entered into a mutual obligation to a lord in context to feudal society. The obligations often included military support and mutual protection, in exchange for certain privileges, usually including the grant of land.

Obligations

 * Military support to their King.
 * Military support to their Great House (in the case of the Eight Kingdoms).
 * Mutual protection to their King and/or Great House.

Privileges

 * Nobility.
 * Mutual protection.
 * Holding land.