Theophylactus, often referred to as Theophylact, was a notable figure in the Byzantine Empire, primarily recognized for his role as a scholar and ecclesiastical leader. He served as the Archbishop of Achrida in the 11th century and is best known for his commentaries on the Bible, which aimed to make the scriptures more accessible to the faithful. In addition to his biblical commentaries, Theophylactus wrote various theological works and sermons that contributed to the understanding of Christian doctrine during his time. His writings reflect the complexities of Byzantine religious life and the interplay between faith and scholarship in the medieval period.