Tvrtko I, Ban (1367-1377), King (1377-1391) (Kingdom of Bosnia) : All Data

Tvrtko I was the ruler of the Kingdom of Bosnia from 1367 to 1391. During his reign, he faced several significant wars and conflicts. One of the most important wars was the Bosnian-Hungarian War, which took place from 1377 to 1381. Another notable conflict was the Battle of Kosovo in 1389, where Tvrtko I supported the Serbian forces against the Ottoman Empire. Additionally, he faced internal revolts, such as the rebellion of his cousin, Vladislav Kotromanić, in 1390. Tvrtko I's rule was marked by his efforts to expand and consolidate the Kingdom of Bosnia amidst these turbulent times.