Oberyn Martell is a fictional character from the book series A Song of Ice and Fire by George R.R. Martin and the television adaptation Game of Thrones. He is the prince of Dorne, known for his charm, intelligence, and exceptional combat skills. Oberyn is also recognized for his distinctive appearance, including his long hair and colorful clothing, which reflect the vibrant culture of Dorne. Oberyn seeks vengeance for the death of his sister, Elia Martell, who was murdered during the Robert's Rebellion. He becomes involved in the political intrigue of King's Landing and participates in a trial by combat to defend Tyrion Lannister, showcasing his fierce loyalty and desire for justice.