Landed knight

A landed knight is a knight that takes residence in a keep with accompanying land. They have their own peasants and men-at-arms, and may even take sworn swords.

Landed knights are sworn to fight for the lord who holds dominion over their land. While the wealthiest knights manage more land than the poorest lords, landed knights do not have the authority to deliver justice in their land. Rather, they must appeal to their liege lord.

According to GRRM certain landed knights, of ancient houses, with extensive lands, and large strong castles, may be lords in all but name. These “uber-knights” may actually be more powerful than many smaller lordlings, so there's an overlap. Their peculiar status if often reflected by taking a style that incorporates the name of their castle, such as the Knight of Ninestars.