Udbina is a village and a municipality in historical Krbava, in the Lika region of Croatia. It is administratively a part of the Lika-Senj County. Geography Udbina is located in the large karst field called Krbava. It is approximately 45 kilometres from Gospić, the county capital and nearest sizeable town. The field has a small airport, the only one in Lika. History Udbina was one of Illyrian territories. In the medieval Kingdom of Croatia, Udbina was known as Civitas Corbaviae (Town of Krbava) and was the seat of a Diocese of Corbavia from 1185, when it was separated from the Archdiocese of Split, until 1460, when the diocese seat moved to the Krbava's former canonical territory of Modruš due to Ottoman military campaigns in the area. The Bishop's Court was built during Bishop Bonifacio in the 14th century. In the Middle Ages, Udbina was a seat () of the historic Krbava County. The name Udbina was mentioned for the first time in 1493, following the Battle of Krbava Field in which the Croats under ban Emerik Derenčin and the Frankopans suffered defeat from the Ottoman Empire. The medieval fortified town, from which only the remains were preserved, was governed in 1509 by Ban Ivan Karlović and between 1527 and 1689 by the Turks as part of the Eyalet of Bosnia.The 1712 census of Lika and Krbava records that 44 Croatian, 6 Bunjevci and 20 Vlach families live in Udbina. Ancient tombstones were discovered near the remains of the Church of St. Mark Graveyard (Named after the folk tradition that martyr saint and several heroes of the Battle of Krbava were buried on the site), which was a shrine with a triangular ending destroyed by the Serbs in 1942. In the vicinity, near Mutilić, there are ruins of the old Church of St. Augustine (quadrangular sanctuary with a bell tower). In the late 19th and early 20th century, Udbina was part of the Lika-Krbava County of the Kingdom of Croatia-Slavonia. According to the 1910 census, the town of Udbina was inhabited by a Croat majority and Serb minority; 1,317 Croats and 621 Serbs. Despite the fact that by 1942 the entire population of Udbina and Podudbina had been inhabited by Croat Catholics, the government of the Kingdom of Yugoslavia erected in Udbina a monument to the King Alexander I which was removed only after the establishment of the Independent State of