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.
- 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.
- Mutual protection.
- Holding land.