 The chief original part of Zonaras' history is the section on the reign of Alexios I Komnenos, whom he criticizes for the favour shown to members of his family, to whom Alexios entrusted vast estates and significant state offices.His history was continued by Nicetas Acominatus.Various ecclesiastical works have been attributed to Zonaras — commentaries on the Church Fathers and the poems of Gregory of Nazianzus; lives of Saints; and a treatise on the Apostolic Canons — and there is no reason to doubt their genuineness.