Knightly House

A knightly house is the least type of noble house in Westeros, being comprised of landed knights.

History
Landed knights are knights who have been rewarded for their service by a lord with land, typically a smallholding, large farm or small manor with servants. They form the minor nobility of the Seven Kingdoms. Successful landed knights who expand their holdings or continue to perform exemplary service for their liege may be raised to the rank of "Lord" in time, leading a major noble House.

Examples
House Clegane

House Connington

House Dalt

House Erenford

House Greenfield

House Lorch

House Santagar

House Seaworth

House Swyft

House Wode