Grettir the Strong is a legendary figure from Icelandic sagas, known for his immense strength and bravery. He is the protagonist of the saga titled "Grettis Saga," which recounts his adventures and struggles against various foes, including supernatural beings. Grettir is often depicted as a complex character, facing both external challenges and internal conflicts. Despite his heroic qualities, Grettir is also portrayed as a tragic figure. He is cursed to be an outcast, leading to a life of solitude and hardship. His story explores themes of fate, honor, and the consequences of one's actions, making him a significant character in Norse literature.