Joannes or John Zonaras (Greek: Ἰωάννης Ζωναρᾶς, Iōánnēs Zōnarâs; fl. 12th century) was a Byzantine chronicler and theologian who lived in Constantinople. 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] (Incir Ada, in the Aegean Sea), where he spent the rest of his life writing books.