Anastasios of Antioch was a prominent Christian theologian and bishop in the early 5th century. He served as the Patriarch of Antioch and was known for his contributions to the development of Christian doctrine during a time of theological disputes, particularly regarding the nature of Christ. His leadership helped shape the beliefs of the Eastern Orthodox Church. Anastasios was also involved in the controversies surrounding the Nestorian and Monophysite positions, which debated the dual nature of Christ. His writings and teachings aimed to promote unity within the Christian community and address the challenges posed by differing interpretations of faith.