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The Economic History of Byzantium - Dumbarton Oaks

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986 NICOLAS OIKONOMIDES<br />

ascribed, without doubt, to Leo III the Isaurian, who conducted a systematic campaign<br />

<strong>of</strong> restoring state control over activities that in the period <strong>of</strong> his predecessors had been<br />

largely controlled by private interests. 32<br />

One general kommerkiarios remained after 730/31; he was based in Constantinople,<br />

since he was <strong>of</strong>ten also archon tou blattiou, “lord <strong>of</strong> the purple.” <strong>The</strong>re were also general<br />

kommerkiarioi in certain cities: Mesembria (until the second half <strong>of</strong> the 8th century) and<br />

<strong>The</strong>ssalonike (after 712/13). Both these cities were important harbors and were close<br />

to the Bulgarian border, in locations convenient for the import-export trade. Luxury<br />

goods, especially purple-colored leather, formed an important part <strong>of</strong> this trade. 33<br />

<strong>The</strong> latest surviving seal <strong>of</strong> imperial kommerkia to bear a depiction <strong>of</strong> the emperor<br />

and the indiction is dated 832/3. During the decade that followed, we find some seals<br />

with the indiction but without the imperial depictions. By this time, however, the kommerkiarioi<br />

have reappeared, as “imperial” kommerkiarioi (after 831/2): in other words,<br />

they were civil servants, with jurisdiction over one, two, orthree themes but especially<br />

over harbor cities located on the seacoast and on rivers. It seems clear that the sphere<br />

<strong>of</strong> responsibility <strong>of</strong> the kommerkia and the kommerkiarioi had changed by this time.<br />

In the meantime, we have the first appearance <strong>of</strong> a new form <strong>of</strong> state revenue, the<br />

kommerkion, whichwas undoubtedly connected with trade. In 785, the chronicler <strong>The</strong>ophanes<br />

records that Emperor Constantine VI exempted (ejkoúfise) thechurch <strong>of</strong> St.<br />

John the Divine in Ephesos from the kommerkion on its fair, amounting to 100 litrai<br />

(7,200 nomismata) <strong>of</strong> gold. 34 Here the kommerkion is clearly a tax on the fair—that is,<br />

on the sales <strong>of</strong> merchandise that took place during it—which the state collected from<br />

the “owner” <strong>of</strong> the fair (the church), on whose ground the merchants gathered and to<br />

whom they paid the charges <strong>of</strong> all kinds required for participation in the fair. We do not<br />

know whether the sum mentioned by <strong>The</strong>ophanes was calculated by approximation on<br />

the transactions that actually took place or whether it was a lump-sum levy. Nor do we<br />

know to what percentage <strong>of</strong> the merchandise the kommerkion corresponded at that time.<br />

However, later sources tell us that the kommerkion was still levied on fairs and that it<br />

usually corresponded to 10% <strong>of</strong> the value <strong>of</strong> the transactions that took place.<br />

All those sailing through the straits toward Constantinople, either from Abydos at<br />

the Dardanelles end or from Hieron on the Bosphoros, paid the legómena kommérkia,<br />

the “so-called kommerkia”; Empress Irene suspended collection <strong>of</strong> this levy, and it was<br />

restored byher successor. Early in the ninth century, Emperor Nikephoros imposed a<br />

compulsory loan on the shipowners <strong>of</strong> Constantinople, who were still subject to payment<br />

<strong>of</strong> the “usual kommerkia.” 35 In both these cases, the kommerkion was a duty on the<br />

circulation <strong>of</strong> commodities, and it clearly served as a continuation <strong>of</strong> the duty imposed<br />

by Justinian I in the sixth century when he set up the customs houses at Abydos and<br />

32 Ecloga, 166.<br />

33 See N. Oikonomides, “Tribute or Trade? <strong>The</strong> Byzantine-Bulgarian Treaty <strong>of</strong> 716,” Studia Slavicobyzantina<br />

et Medievalia Europensia 1 (1988): 29–31.<br />

34 <strong>The</strong>ophanes, 1:469–70.<br />

35 Ibid., 475, 487.

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