Vassal and tributary states of the Ottoman Empire

The Ottoman Empire at its greatest extent in the Middle East, including its client states.

The Ottoman Empire had a number of tributary and vassal states throughout its history. Its tributary states would regularly send tribute to the Ottoman Empire, which was understood by both states as also being a token of submission. In exchange for certain privileges, its vassal states were obligated to render support to the Ottoman Empire when called upon to do so. Some of its vassal states were also tributary states. These client states, many of which could be described by modern terms such as satellite states or puppet states, were usually on the periphery of the Ottoman Empire under suzerainty of the Sublime Porte, over which direct control was not established, for various reasons.