Severus of Rome, also known as Severus of Antioch, was a prominent Christian theologian and bishop in the early 5th century. He is best known for his opposition to the Council of Chalcedon in 451, which defined the two natures of Christ. Severus advocated for a Miaphysite understanding of Christ, emphasizing the unity of His divine and human natures. Severus served as the Patriarch of Antioch and played a significant role in the theological debates of his time. His writings and teachings influenced the development of the Miaphysite tradition, which later became central to the beliefs of the Oriental Orthodox Churches.