The Kingdom of Bosniaball was a historical countryball in the Balkans, which is southeast Europe. It was in what is now modern-day Bosnia and Herzegovinaball.
The kingdom gained independence from Hungary.
By the mid-14th century, Bosnia reached its peak under Ban Tvrtko I of the House of Kotromanić, who was officially crowned on 26 October 1377. as "Stephen, King of Serbs, Bosnia and Littoral" ("Stefan, kralj Srbljem, Bosni i Primorju"). By having done so, he became a ruler of the newly proclaimed Kingdom of Bosnia, a state that followed the Banate of Bosnia. At its peak the Kingdom became one of the most influential and powerful states in the Balkan peninsula prior to Ottoman conquest.
Throughout the Middle Ages, Herzegovina was made up of several smaller polities: Zahumlje (Hum), centered around the town of Blagaj, and Travunia, centered on the town of Trebinje. These statelets were in periods ruled by semi-independent princes, mostly under suzerainty of the Serbian medieval monarchy. Their territories included modern Herzegovina and parts of Montenegro and southern Dalmatia. The name Herzegovina was adopted when Stjepan Vukčić Kosača, the "Duke of St. Sava" asserted its independence in 1435–48. The assembly of these noblemen was called stanak and was quite influential.