Melian is a significant character from J.R.R. Tolkien's legendarium, particularly known from The Silmarillion. She is a Maia, a divine spirit, who descended into the world of Middle-earth and became the queen of Doriath after marrying the Elven king Thingol. Melian's presence brought a protective barrier around her realm, known as the Girdle of Melian, which kept out many dangers. Her story intertwines with themes of love, power, and sacrifice, as she plays a crucial role in the fate of her kingdom and the events of the First Age. Melian's wisdom and beauty are legendary, making her one of the most memorable figures in Tolkien's works.