What were loyal warriors and bodyguards of their lords?

Loyal warriors and bodyguards of their lords were often referred to as vassals or knights in feudal societies. They pledged their allegiance to a lord in exchange for land, protection, and sustenance. These warriors were responsible for defending their lord's territory, participating in battles, and maintaining the lord's honor and power. Their loyalty and martial skills were crucial for the stability and security of the feudal system.