Answer:
The knight
Explanation:
The knight's job was to protect their lord, the land and the people. They were a standing army, usually cavalry, and they were granted the title of knight usually by a monarch but the Christian church could also grant knighthood. They became a class of their own and were considered lower nobility. They were trained to fight and had full metal heavy armor. A knight on a horse would be something like a tank by today's standards.
