Shamadavle Dadiani

Shamadavle Dadiani (also Shamandavle or Shamandavla; Georgian: შამადავლე დადიანი; died 1474) was a member of the House of Dadiani and eristavi ("duke") of Odishi (Mingrelia) in western Georgia from 1470 until his death. He succeeded his father Liparit I Dadiani and continued his predecessors' efforts to garner more autonomy as the united Kingdom of Georgia was approaching to its end.

Shamadavle was the elder son of Liparit I Dadiani, on whose death he succeeded as the eristavi of Odishi in 1470. As the surviving documents reveal he styled himself as the "great eristavt-eristavi ("duke of dukes") Dadiani-Gurieli". Of these title-turned-surnames, the former signified his rule in Odishi and the latter emphasized his suzerainty over Guria, a fief of the secundogeniture of the Dadiani in possession of Shamadavle's younger brother, Mamia II Gurieli, and his progeny. His other titles were those of the eristavi of the Svans and of mandaturt-ukhutsesi ("Lord High Steward") of Imereti.

Like his father and predecessor, Shamadavle contributed to the final fragmentation of the Kingdom of Georgia; Liparit helped militarily to Bagrat II of Imereti to secede in western Georgia and Shamadavle assisted him in detaching the western Georgian church—the Catholicate of Abkhazia—from the Patriarchate of Mtskheta, thereby rendering the Georgian church divided into two for the following four centuries. This was done with the assistance of Michael IV, a Greek Patriarch of Antioch, who was touring Georgia to collect donations. Michael produced a canonical epistle in Georgian, declaring the Mingrelian bishop Joachim of Tsaishi and Bedia as catholicos under the tutelage of the See of Antioch.

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