Tomislavgrad (, ), also known by its former name Duvno (, ), is a town and municipality located in Canton 10 of the Federation of Bosnia and Herzegovina, an entity of Bosnia and Herzegovina. It mainly covers an area of the historical and geographical region of Tropolje. As of 2013, it has a population of 33,032 inhabitants. In the Roman times it was known as Delminium. During the middle ages when it was part of Croatia and Bosnia, the town was known as Županjac, a name that remained until 1928, when it was changed to Tomislavgrad. In 1946, the town's name was again changed to Duvno, and in 1990, the name was returned to Tomislavgrad. Name The town name means literally "Tomislav town". The name was changed from Županjac to Tomislavgrad in 1928 by King Alexander I of Yugoslavia in tribute to his son Prince Tomislav and also Tomislav of Croatia, the first king of the Kingdom of Croatia, who was crowned in the area. The name was changed to Duvno after World War II by Yugoslav communist authorities. In 1990 the name was restored to Tomislavgrad. Still, among inhabitants of Bosnia and Herzegovina, the local residents are often referred as (Duvniaks) and the town is often called Duvno. Also, the town is sometimes referred to simply as "Tomislav". The Catholic diocese in that area is still called Mostar-Duvno. During the Roman Empire the town was called Delminium and during the medieval period in Kingdom of Croatia and Kingdom of Bosnia it was called Županjac. Under the Ottoman Empire, it was called Županj-potok; and under Austria-Hungary, Županjac again. Location Tomislavgrad is from the canton seat Livno, from Mostar, and from Sarajevo. Demographics Population Ethnic composition History Ancient times Illyrian time The area has been inhabited by Illyrian tribe of Dalmatae and Delminium was a town established by them in nowadays Tomislavgrad. Delminium was situated on the location of today's Roman Catholic basilica, named after the first Croatian saint, Nikola Tavelić. The area of Tomislavgrad has been populated from 4000 BC – 2400 BC, even before the Illyrians arrived, and from that time only polished stone axes remained as proof that someone was there. Bronze Age (1800 BC – 800 BC) also left few marks in Tomislavgrad. The archeological collection of the friary in Široki Brijeg had a few items found in an area of Tomislavgrad from the Bronze Age: 34