Answer:
Sir Gawain - one of King Arthur's knights
The Green Knight - a warrior who makes a challenge to the court
Camelot - King Arthur's castle
Step-by-step explanation:
Sir Gawain and the Green Knight is a late 14th-century Middle English chivalric romance. It begins with the Green Knight visiting King Arthur's court and castle (Camelot) and challenging him and his knights to strike him with his own axe on the condition that the challenger finds him in exactly one year to receive a blow in return. Sir Gawain, one of Arthur's knights, accepts this challenge.