what is the difference between a knight and a lord
Lord Under the feudal system, "lord" had a wide, loose and varied meaning. An overlord was a person from whom a landholding or a manor was held by a mesne lord or vassal under various forms of feudal land tenure. The modern term "landlord" is a vestigial survival of this function. A liege lord was a person to whom a vassal owed sworn allegiance. Neither of these terms were titular dignities, but rather factual appellations, which described the relationship between two or more persons within the highly stratified feudal social system. For example, a man might be Lord of the Manor to his own tenants but also a vassal of his own overlord, who in turn was a vassal of the King. Where a knight was a lord of the manor, he was referred to in contemporary documents as "John (Surname), knight, lord of (manor name)". A feudal baron was a true titular dignity, with the right to attend Parliament, but a feudal baron, Lord of the Manor of many manors, was a vassal of the King.
Sir Gawain and the Green Knight Sir Gawain and the Green Knight (Middle English: Sir Gawayn and þe Grene Knyȝt) is a late 14th-century Middle English chivalric romance. It is one of the best known Arthurian stories, with its plot combining two types of folklore motifs, the beheading game and the exchange of winnings. The Green Knight is interpreted by some as a representation of the Green Man of folklore and by others as an allusion to Christ. Written in stanzas of alliterative verse, each of which ends in a rhyming bob and wheel,[1] it draws on Welsh, Irish, and English stories, as well as the French chivalric tradition. It is an important example of a chivalric romance, which typically involves a hero who goes on a quest which tests his prowess, and it remains popular to this day in modern English renderings from J. R. R. Tolkien, Simon Armitage, and others, as well as through film and stage adaptations.