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 Porte, over which direct control was not established, for various reasons.
Mamia I Gurieli, of the House of Gurieli, was Prince of Guria from 1512 until his death in 1534. Succeeding on the death of his father Giorgi I Gurieli, Mamia became involved in the conflict between the two eastern Georgian kingdoms of Kartli and Kakheti in 1520; by force of arms, he compelled David X of Kartli to agree on peace with Levan of Kakheti, his son-in-law. Mamia Gurieli's 1533 campaign, jointly with his namesake Prince of Mingrelia, against the homebase of Circassian pirates ended in a fiasco, with Mamia being captured and ransomed later that year.
