Final answer:
Arthur is willing to give Mordred control over the kingdom for a year. Sir Bors and Sir Lionel are the two knights sent by King Arthur to speak with Mordred. Mordred asks for two castles and the tribute in order to solidify his power and establish himself as the rightful heir to the throne.
Step-by-step explanation:
In the legend of King Arthur, after listening to Sir Gawain's warning, Arthur is willing to give Mordred control over the kingdom for a year. King Arthur sends two knights, Sir Bors and Sir Lionel, to speak with Mordred. Mordred asks King Arthur for two castles and the tribute that is paid to Arthur every year.
He asks for these things because he wants to solidify his power and establish himself as the rightful heir to the throne. By gaining control over the kingdom and the tribute, Mordred would have authority and resources to support his claim.