It is attested that he was in charge of tax exemptions, and had various juridical duties in some in the 11th century; the office may have been associated with the imperial domains (). By the 11th century, the office had become an independent bureau, but vanishes after that. The (), who were customs officials. Attested since the early 6th century, they are likely the successors of the mentioned in the Notitia Dignitatum. Initially stationed at the frontier, after the 7th century they were placed at ports or in charge over entire or individual islands. The [of the ] (, 'in charge of the curatorship [of the imperial domains]'), who supervised the imperial estates. The (), an official probably in charge of the mines and gold bullion (cf. , 'gold, precious metals'). It is therefore usually assumed that he is the successor of the old . From sigillographic evidence through the 11th century, this office was sometimes combined with the positions of ('in charge of the ", a class of senior courtiers) and of one of the of the . The (), officials who supervised the collection of taxes, assisted by a number of ('agents'). The (κομ[β]εντιανός), an official of unknown function. A number of (, from ) under a . Originally senior officials in the praetorian prefecture, in the middle Byzantine period they were mid-level secretaries in the various ministries. References Sources Byzantine fiscal offices Byzantine court titles