Joannes or John Zonaras (Ancient Greek: Ἰωάννης Ζωναρᾶς Iōánnēs Zōnarâs; c. 1070 – c. 1140) was a Byzantine Roman historian, chronicler and theologian who lived in Constantinople (modern-day Istanbul, Turkey). Under Emperor Alexios I Komnenos he held the offices of head justice and private secretary (protasēkrētis) to the emperor, but after Alexios' death, he retired to the monastery on the Island of Hagia Glykeria,[1] (İncir Adası, in the Bay of Tuzla), where he spent the rest of his life writing books.