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In page Ancona:

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After 1000, Ancona became increasingly independent, eventually turning into an important maritime republic[1] (together with Gaeta and Ragusa, it is one of those not appearing on the Italian naval flag), often clashing against the nearby power of Venice. An oligarchic republic, Ancona was ruled by six Elders, elected by the three terzieri into which the city was divided: S. Pietro, Porto and Capodimonte.[citation needed] It had a coin of its own, the agontano, and a series of laws known as Statuti del mare e del Terzenale and Statuti della Dogana. Ancona was usually allied with the Republic of Ragusa and the Byzantine Empire.[citation needed]