A knight is a person granted an honorary title of knighthood by a head of state or representative for service to the monarch, the church or the country, especially in a military capacity.
A 14th-century depiction of the 13th-century German knight Hartmann von Aue, from the Codex Manesse
A Norman knight slaying Harold Godwinson (Bayeux tapestry, c. 1070). The rank of knight developed in the 12th century from the mounted warriors of the 10th and 11th centuries.
Hungarian knights routing Ottoman spahi cavalry during the Battle of Mohács in 1526
David I of Scotland knighting a squire
Hippeis is a Greek term for cavalry. In ancient Athenian society, after the political reforms of Solon, the hippeus was the second highest of the four social classes. It was composed of men who had at least 300 medimnoi or their equivalent as yearly income. According to the Timocratic Constitution the average citizen had a yearly income of less than 200 medimnoi. This gave the men who made 300 medimnoi the ability to purchase and maintain a war horse during their service to the state.
A Laconian black-figured cup by Rider Painter featuring a member of the hippeus.
Fully armed Hippeus. Attic black-figure amphora, 550–540 BC (Louvre)
Roman mosaic depicting hippeus in combat with Amazon, 4th century AD (Louvre)