1. Sources

The title of ek prosopou ({{lang-el|{{lang|grc|ἐκ προσώπου}}}}), meaning "representative", was widely used in the middle Byzantine Empire (9th–12th centuries) for deputies of various office holders.

The title could be applied in a generic sense to any senior official, such as the strategos of a theme, who was in a sense the deputy of the Byzantine Emperor. In a more technical sense, as used in the Taktika or lists of offices of the 9th–11th centuries, it was used by subordinate officials who deputized for a strategos or other provincial governor or one of the central government ministries for a specific district (called ekprosopike by Kekaumenos). The same usage is also attested in the ecclesiastical hierarchy.

Sources

• {{cite book | last=Bury | first=John Bagnell | authorlink=J. B. Bury | title=The Imperial Administrative System of the Ninth Century - With a Revised Text of the Kletorologion of Philotheos | year=1911 | location=London | publisher=Oxford University Press | url=https://archive.org/details/imperialadminist00buryrich | pages = 46–47}}
• {{Oxford Dictionary of Byzantium | page = 683}}

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