The kanstresios () was an official of the Orthodox patriarchate of Constantinople during the Byzantine Empire. Ranked between a protonotarios and a referendarios, he supervised offerings.André Guillou, "Functionaries," in The Byzantines, edited by Guglielmo Cavallo (University of Chicago Press, 1997), p. 212 online.
Those who have held the post include Manuel Dishypatos of the order of the Levites (probably to be identified with Manuel Opsaras Dishypatos, Metropolitan of Thessaloniki from 1258)Maria Vasilakê, Images of the Mother of God: Perceptions of the Theotokos in Byzantium (Ashgate Publishing, Ltd., 2005), p. 268 online. and Demetrios Chloros (14th century).
The title is not to be confused with the kastresios, which was a court office related to the provisioning of the palace and the imperial table, usually held by eunuchs.
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