The Arthurian mythos refers to the legendary stories and characters associated with King Arthur, the Knights of the Round Table, and the quest for the Holy Grail. These tales, originating in medieval literature, blend history, folklore, and romance, depicting themes of chivalry, loyalty, and adventure. Key figures include Merlin, the wise wizard, and Guinevere, Arthur's queen. The mythos has evolved over centuries, with various authors contributing to its richness, including Sir Thomas Malory and T.H. White. It has inspired countless adaptations in literature, film, and art, making it a significant part of Western cultural heritage. The stories continue to captivate audiences with their timeless themes and heroic ideals.