Vlatko Vuković
Vlatko Vuković Kosača (; died ) was a 14th-century Bosnian nobleman, Duke of Hum, Grand Duke of Bosnia () and one of the best military commanders of King Tvrtko I, for whom he governed Hum (part of modern-day Herzegovina), which was part of the Banate of Bosnia and later Kingdom of Bosnia. Vlatko was probably a son of duke Vuk Kosača, often regarded as founder of the Kosača noble family. Military engagements. Battle of Bileća. The Ottoman threat was building to the east, threatening Bosnia and its southeastern regions in Hum. On 27 August 1388, Grand Duke Vlatko defeated  an Ottoman raiding party (probably up to 18,000 strong) in the Battle of Bileća. Bosnian heavy cavalry is typically credited with winning the battle as they broke the Ottoman ranks and pursued the retreating enemy. Celebrated Ottoman commander Lala Sahin Pasha (, 1330 – cca 1382) barely managed to save himself with the small band of his soldiers. Battle of Kosovo. In 1389, dispatched by his king Tvrtko I, he commanded a Bosnian army contingent as part of a Christian coalition that fought alongside Serbian prince Lazar Hrebeljanović at the Battle of Kosovo against the Ottomans. Vuković was one of few commanders  who survived the battle. Although the battle is viewed now as tactically inconclusive, at the time the battle was viewed differently - Vuković reported the outcome of the battle as a victory, as the Ottomans suffered heavy losses and were forced to withdraw for a time. Dispute with Radić Sanković over Konavle. A council was convoked by the king or noblemen who opposed the sale of Konavli by Radič Sanković to Dubrovnik, He and Pavle Radenović later captured Konavli and divided it between themselves. Vlatko later died. Death and burial. He died sometime between August 1392 - August 1393. His nephew Sandalj  Hranić succeeded him. It was thought that both Vlatko's and his wife's graves lie marked in stećak necropolis near the village of Boljuni, not far from Stolac, in Bosnia and Herzegovina. Written in Bosnian Cyrillic, inscription on that particular grave says: ""Ase leži dobri junak i čovjek Vlatko Vuković"" (), however, neither grave belong to a famous duke and/or his wife.